Pug snapshot

The American Kennel Club describes a charming companion with a square and cobby body, a short muzzle, and a face full of deep wrinkles under large, dark, prominent eyes. The breed standard uses the phrase multum in parvo, much in little, to describe a lot of dog in a small and sturdy package. The AKC placed the Pug at No. 38 in its Most Popular Dog Breeds of 2024 list, based on registration statistics.

Pug at a glance (source: American Kennel Club)
Height10 to 13 inches at the shoulder.
Weight14 to 18 pounds.
Lifespan13 to 15 years, as listed by the AKC.
CoatShort, smooth, and fine, in fawn or black. The coat sheds more than owners expect from a short coated dog, and regular brushing is part of normal care.
TemperamentCharming, mischievous, and loving. A companion breed that follows its people from room to room and prefers company to solitude.
GroupToy Group. The Pug is the largest of the toy breeds, and it is built more solidly than its group mates.
Energy and exerciseLow to moderate. Short walks in the cool parts of the day suit the breed. Heat and humidity are genuine risks because of the airway and the short muzzle, and this breed does poorly in hot and humid weather.

Two snapshot facts shape the insurance decision, and they feed each other. The first is weight. The AKC notes that Pugs are very food oriented and gain weight readily. Extra weight narrows an airway that is already narrow, because tissue around and inside the airway takes up room the dog does not have to spare. A Pug that is carrying extra pounds breathes harder at rest, copes worse in heat, and faces higher risk under anaesthesia. That is why the weight line in this table is not a cosmetic detail. It is an airway fact. The second half of the loop runs the other way. A dog whose breathing limits exercise gets less exercise, and less exercise makes weight harder to hold. Owners meet this loop early, often in the first adult year, and the record of it, weight notes, breathing notes, and body condition scores, is exactly the record an insurer will later read alongside an airway claim.

The second fact is the lifespan. At 13 to 15 years, a Pug lives a long life for a brachycephalic breed. A long life is good news, and it changes the insurance maths. A skin condition that starts in a young adult dog can run for a decade. An eye surface that needs management in middle age needs it for years. A policy for this breed is judged over a long middle, not a short one, so wording about chronic conditions, renewals, and repeat episodes matters more for a Pug than the headline benefit list does. The breed's own health program tells you where breeders look first. The Pug Dog Club of America takes part in the Canine Health Information Center program run with the Orthopedic Foundation for Animals, often shortened to OFA. Its required record includes a DNA test for susceptibility to Pug Dog Encephalitis, an eye examination, and a patella evaluation, with permanent identification. That record is the backbone of the screening section below.

Health tendencies in Pugs

Cornell, the Merck Veterinary Manual, the breed club, and the UC Davis Veterinary Genetics Laboratory point to a Pug list that only partly overlaps the Bulldog and French Bulldog lists. The airway is there, and so is the eye, but this breed adds a brain disease found in almost no other breed, deep skin folds that need daily care, and a screw tail that travels with the spine. These are tendencies, not predictions about an individual dog. The point of reading the list before you buy a policy is that each tendency has a clause attached to it, and the clause is easier to check before a claim than during one.

This section is general information about conditions a breed can be prone to. It is not veterinary advice and it is not a diagnosis of any dog. Signs listed here are possible signs owners may notice, and many of them have several causes. Only a veterinarian who examines your dog can say what a sign means.

Breathing problems (brachycephalic obstructive airway syndrome, or BOAS)

What it is

A group of upper airway problems that travel together in short headed breeds. Brachycephalic means short headed. Cornell's Riney Canine Health Center lists the Pug among the breeds where this condition is seen most frequently, alongside the English Bulldog, the French Bulldog, and the Boston Terrier. Cornell explains that the skull bones are compressed, while the tissues inside do not shrink by the same amount. The main findings can include narrowed nostrils, called stenotic nares, that may collapse as the dog breathes in, a soft palate at the back of the mouth that is long enough to block airflow, small pouches of tissue near the vocal cords that get pulled inward, called everted laryngeal saccules, and in some dogs a windpipe that is narrower than it should be, called a hypoplastic trachea. Working harder to breathe can swell throat tissue over time, which narrows the airway further. Cornell also notes links with reflux, hiatal hernia, and aspiration pneumonia, which is lung infection that follows material breathed into the lungs. Many Pugs breathe comfortably for years. The tendency is real, and so is the range inside it.

Signs owners may notice

  • Noisy breathing at rest, snoring while awake, snorting, or a harsh sound on a short walk.
  • Breathing that looks like hard work, with more chest and belly movement than you would expect.
  • Tiring quickly, sitting down on walks, or struggling in warm or humid weather.
  • Gagging or retching, trouble swallowing, vomiting or regurgitation around meals, or restless sleep.
  • Panting that does not settle after coming indoors, drooling, or wobbliness in heat.
Emergency signs: Laboured or gasping breathing, a blue or grey tongue or gums, collapse, or a dog that cannot settle or cool down is an emergency. Cornell states that BOAS can become an emergency situation and that a dog in a respiratory crisis needs immediate transport to a veterinarian or emergency hospital. Keep the dog calm and cool on the way.

How vets usually evaluate and treat it

Cornell notes that most dogs are diagnosed between one and four years of age, and that diagnosis rests on the breed, the signs, and a physical exam. Narrowed nostrils can be seen on a routine exam. Looking at the soft palate and the tissues near the vocal cords usually needs light anaesthesia, X-rays of the neck and chest can show the width of the windpipe, and endoscopy or a CT scan is used in some cases. Mild cases are often managed with healthy weight, strict avoidance of heat and humidity, controlled activity, and a harness instead of a neck collar. More severe cases may be referred to a surgical specialist. Surgery can widen the nostrils, shorten a long soft palate, or remove pulled in tissue. Cornell is clear that no surgery corrects a narrow windpipe itself. Cornell also notes that early surgery, in dogs under two years of age, is associated with better outcomes in the sources it summarises, which is one more reason a breathing sign belongs in a vet visit promptly rather than in a wait and see folder. Anaesthesia in a short headed breed carries extra risk, and swelling after airway surgery is a known risk the care team plans for.

Policy wording to check: Ask whether BOAS is covered for a Pug at all, whether corrective airway surgery is a covered treatment or is treated as elective, whether a brachycephalic or breed condition exclusion applies, and whether a special waiting period sits on airway claims. Also ask how a note about snoring or noisy breathing recorded before enrollment would be treated, because insurers read notes, not only diagnoses.

Read the full BOAS condition guide →

Eye surface disease (corneal ulcers, dry eye, and pigmentary keratitis)

What it is

The Pug eye is large, round, and prominent, and it sits in a shallow socket with little protection from the brow or the muzzle. The AKC's Pug lifestyle guidance names the result plainly. The breed's bright, wide eyes are prone to corneal ulcers and to dry eye. Three surface problems share this card, because a Pug owner can meet all three and a policy can treat them differently. A corneal ulcer is a sore on the cornea, the clear front of the eye. A scratch, a foreign body, dryness, or a rubbing eyelash can start one, and the exposed surface gives it little shelter while it heals. Dry eye, called keratoconjunctivitis sicca in veterinary records, means the eye is not making enough of the watery part of its tears, so the surface dries, thick discharge collects, and ulcers become more likely. Pigmentary keratitis means dark pigment slowly spreading across the clear surface of the eye, often linked to chronic irritation or dryness. Left unmanaged, that pigment can cover the surface the dog sees through. Surface disease in this breed is rarely a single episode with a clean ending. It is a management story that can run for years.

Signs owners may notice

  • Squinting, tearing, pawing at the eye, rubbing the face, or holding one eye partly or fully closed.
  • A cloudy, dull, or spotted area on the clear front surface of the eye.
  • Thick discharge, redness of the white of the eye, or avoiding bright light.
  • A brown or dark film creeping across the surface of one or both eyes over months.
  • Repeated episodes in the same eye, or an eye that never quite looks clear between episodes.
Emergency signs: An eye held shut, a suddenly cloudy spot on the eye, heavy pawing at an eye, or any loss of vision should be seen the same day. Corneal ulcers can deepen quickly, and surface damage can cost vision. Do not use leftover eye drops unless a vet directs it, because the wrong drop can make an ulcer worse.

How vets usually evaluate and treat it

Evaluation usually starts with a close examination of the eye and eyelids. The Merck Veterinary Manual describes the tools vets use for disorders of the cornea in dogs. A fluorescein stain test places dye on the surface so damage shows up under light. A Schirmer tear test uses a small strip of paper at the eyelid to measure tear production, which is how dry eye is confirmed and graded. A specialist examination by a veterinary ophthalmologist, the same kind of specialist who performs this breed's screening eye examination, is used when damage is deep, pigment is advancing, or episodes keep returning. Care depends on depth and cause. Categories include topical medicine for the surface, treatment of any infection, pain control, protection from rubbing, tear support for dry eye, and, for deeper ulcers or advanced pigment, surgical care. Rechecks are part of the treatment, not an extra. An ulcer is followed until the surface has healed, and a dry eye is rechecked because its medicine is long term.

Policy wording to check: Ask whether corneal ulcers, dry eye, and pigmentary keratitis are covered for a Pug, or whether eye conditions in this breed sit inside a breed condition exclusion. Ask whether an ulcer that follows an injury is handled as an accident claim, an illness claim, or either. Then ask whether long term dry eye medicine, specialist eye visits, and repeat episodes in the same eye stay covered after the first episode, and how the second eye is treated if it is affected later.

Pug Dog Encephalitis (necrotizing meningoencephalitis, or NME)

What it is

An inflammatory disease of the brain and central nervous system that is seen almost entirely in Pugs, which is why it carries the breed's name. Encephalitis means inflammation of the brain. The UC Davis Veterinary Genetics Laboratory describes Pug Dog Encephalitis, shortened to PDE, as an inflammatory central nervous system disease that is usually progressive and fatal. UC Davis notes that female fawn Pugs younger than seven years of age are more apt to develop it, though no Pug is outside the picture entirely. There is no cure. Care is supportive, aimed at controlling seizures and inflammation and keeping the dog comfortable for as long as that is possible. This is the hardest card in this guide to read, and it is the card that makes one line of the Pug screening file unlike any other breed's. The DNA test for this disease does not detect the disease itself. It detects a marker pattern linked to susceptibility, which means a higher or lower statistical risk. The screening section below explains that test result by result, because owners routinely misread it in both directions, as a clean bill of health or as a diagnosis. It is neither.

Signs owners may notice

  • Seizures, which can be a full body episode or a smaller episode of staring, trembling, or unresponsiveness.
  • Behaviour change or depression, a dog that seems dull, withdrawn, or not itself over days.
  • Ataxia, which means unsteady and uncoordinated movement, or an abnormal gait that was not there before.
  • Blindness or apparent vision loss, bumping into objects, or pressing the head against walls or furniture.
  • Signs that progress over days to weeks rather than appearing once and resolving.
Emergency signs: A seizure, a sudden behaviour or gait change, or sudden blindness in a Pug needs emergency assessment the same day. These signs have several possible causes, and only an examination, and often referral, can sort them. Time the episode if you can do so safely, keep the dog away from stairs and water, and do not put anything in the dog's mouth.

How vets usually evaluate and treat it

Evaluation starts with a physical and neurological examination to locate where in the nervous system the problem sits. Because the signs overlap with infection, epilepsy, toxin exposure, and other brain disease, a workup can involve blood testing, referral to a veterinary neurologist, advanced imaging such as MRI to look at the brain itself, and testing of the fluid around the brain and spinal cord. UC Davis is plain that its susceptibility test is not part of that diagnosis. A susceptibility result cannot confirm PDE in a sick dog, and a low risk result cannot rule it out. Where PDE is diagnosed, treatment is supportive. Categories include medicine to control seizures, medicine aimed at inflammation, and nursing care, with honest conversations about progression and quality of life. That shape of care, specialist led, imaging heavy, and open ended, is why the coverage questions below matter even though the condition itself cannot be prevented.

Policy wording to check: Ask two separate questions in writing. First, whether hereditary and congenital conditions are covered for a Pug, and whether neurologic conditions, MRI, specialist neurology referral, and seizure care are covered services. Second, how a PDE susceptibility result recorded before enrollment is classified. A susceptibility result is not a diagnosis and it is not a sign of disease, so ask directly whether the insurer treats an S/S or N/S result as a pre-existing condition, as a hereditary risk marker with no effect, or in some other named way. Get the answer before enrollment, while the question is still theoretical.

Skin fold dermatitis and allergic skin disease

What it is

Two skin stories share this card, because a Pug owner usually manages both. The first is skin fold dermatitis, also called intertrigo. Intertrigo means inflammation where skin rubs against skin. A Pug has deep facial folds over the nose and forehead, and a curled tail that sits tight against the skin at the tail base. Skin to skin contact in those folds traps moisture and friction, and bacteria and yeast that normally live on skin can overgrow in the warm, damp space. The result is redness, discharge, and a sour smell coming from a fold that looked fine from a distance. The second story is allergic skin disease, an inherited tendency for the skin and immune system to overreact to ordinary things in the environment, such as pollen, dust mites, and moulds. The itch usually comes first and the visible skin damage follows it, because scratching, licking, and rubbing break the surface and invite bacterial and yeast infection on top of the allergy. Ears are part of the same picture in many dogs, so a Pug with repeating ear trouble and itchy paws is often one condition, not two. Allergy is a long condition rather than a short episode, and fold care is a daily habit rather than a treatment course. Together they make skin the most persistent line in many Pug vet records.

Signs owners may notice

  • Redness, moisture, discharge, or a sour smell inside a facial fold or under the tail fold.
  • Rubbing the face on the floor or furniture, scooting, or scratching at the tail base.
  • Licking or chewing the paws, scratching, or redness in the ears, armpits, belly, or between the toes.
  • Repeating ear infections, hot spots, hair loss, or skin that picks up a secondary infection.
  • Itch that follows a season at first, then lasts longer each year.

When it can be urgent

Fold redness and allergic itch are usually prompt routine visit signs, not emergencies. Skin that is rapidly swelling, oozing, or bleeding, a swollen face, hives with vomiting or breathing change, or a dog that cannot sleep for itching needs a same day call. A fold infection left to deepen under trapped moisture is a larger problem than the early visit would have been.

How vets usually evaluate and treat it

A vet will usually examine the skin, the folds, and the ears, and look at material from the skin under a microscope, a step called cytology, to tell bacteria from yeast. That distinction decides the treatment, because the two overgrowths are not treated the same way. Care categories for fold dermatitis include fold hygiene, which is gentle cleaning and thorough drying of the folds on a regular schedule, topical therapy applied into the fold, and antimicrobial medicine when a deeper infection is present. A dog whose tail fold keeps infecting despite good hygiene may be referred to discuss surgical options for the fold itself. Care categories for allergic skin disease include treating any secondary infection, anti-itch and anti-inflammatory medicine, medicated bathing, ear care, and, for a dog whose pattern stays strong, referral to a veterinary dermatologist for allergy testing and immunotherapy, which is a long course of treatment aimed at the allergens themselves.

Policy wording to check: Ask how chronic skin conditions are handled at renewal, because neither fold dermatitis nor allergic skin disease ends when the policy year does. Check whether prescription skin medication, cytology and other skin testing, allergy testing, immunotherapy, medicated topical care, and dermatology referral are covered categories, and whether repeat flares and repeat fold infections are counted as one ongoing condition or as new episodes. Also ask how an itch or fold note recorded before enrollment would be treated, since the first itchy season often predates any diagnosis.

Read the full skin allergies condition guide →

Slipping kneecaps and hip dysplasia

What it is

Two joint problems share this card, because the Pug screening file tests for both and a policy can treat them under the same orthopedic wording. The first is patellar luxation, a developmental condition in which the kneecap slips out of the groove it should ride in. Patellar means kneecap, and luxation means displacement out of place. The Merck Veterinary Manual describes patellar luxation as displacement of the kneecap from its groove, often tied to the shape of the whole hind leg, and vets grade its severity by hand during an exam. In a small, solid dog, a slipping kneecap is a common reason for a sudden odd step that then seems to vanish. The second is hip dysplasia, a developmental looseness and malformation of the hip joint that can lead to arthritis over time. Hip evaluation appears in this breed's health testing lists even though the Pug is a small dog, which surprises owners who associate hip dysplasia only with large breeds. Both conditions are screened conditions in this breed, not surprises. A patella evaluation is a required part of the breed club's health program, and a hip evaluation is listed in the AKC health testing requirements for the breed.

Signs owners may notice

  • A sudden skip or hop on a back leg for a few steps, then normal walking again.
  • Holding a back leg up briefly, or stretching it out behind before continuing.
  • Stiffness after rest, reluctance to jump or climb, or tiring earlier on walks than before.
  • In more severe cases, a crouched stance, bowed legs, or lameness that does not come and go.

When it can be urgent

A skipping gait is a book an appointment sign. A leg problem combined with a fall, a cry of pain, swelling, or a leg that will not bear weight at all could be a cruciate ligament injury or a fracture, and that combination needs prompt care.

How vets usually evaluate and treat it

Vets usually diagnose and grade the kneecap by hand during an exam, sometimes with X-rays to look at leg alignment and arthritis. Hip evaluation uses X-rays taken in a standard position and scored under a formal scheme. Mild kneecap cases often suit conservative care, meaning weight management, controlled exercise, physical therapy, and pain medication. Weight matters doubly in this breed, because every extra pound loads both the knees and the airway. Surgery is usually considered for moderate to severe kneecap grades, persistent lameness, or a condition that is getting worse. Keep the grade from every exam. A grade recorded at any point is exactly the kind of early record an insurer will later line up against a surgery claim.

Policy wording to check: Ask whether an orthopedic waiting period applies to kneecap and hip claims, and whether a knee noted as loose before enrollment, even without treatment or signs at home, counts as a pre-existing condition under the policy definitions. Then read the bilateral rule, which is the wording that decides how the second side of a paired condition is treated. A grade on one knee raises the question of how the other knee will be treated later, and hip wording often works the same way.

Spine malformations (hemivertebrae) in a screw tailed breed

What it is

A hemivertebra is a spine bone that did not form completely, so it is shortened or wedge shaped instead of block shaped. The Merck Veterinary Manual lists hemivertebrae among congenital vertebral malformations, alongside fused block vertebrae and cleft butterfly vertebrae, and notes that they occur in screw tailed breeds. Congenital means present from birth. The Pug's tightly curled tail is a screw tail, and the same development that produces it can produce malformed bones further up the spine. The breed club's health program recognises the link by listing spine evaluation among its optional tests. Many of these findings are incidental, which means they are discovered by chance on imaging taken for another reason, and many never cause a sign in the dog's whole life. In some dogs, a wedge shaped bone angles the spine, narrows the canal the spinal cord runs through, or makes a section unstable, and then the cord itself is at risk. Both halves of that sentence matter. A hemivertebra on an X-ray is not a sentence, and cord signs in a screw tailed breed are not a wait and see sign.

Signs owners may notice

  • Wobbliness or poor coordination in the back legs, or a gait that crosses or drags.
  • Back pain, reluctance to jump, climb, or be lifted, or crying out when moving.
  • Weakness in the back legs that builds slowly in a young adult dog.
  • In a severe episode, loss of bladder or bowel control.
Emergency signs: Sudden inability to stand or walk, dragging back legs, severe back pain that does not settle, or loss of bladder control needs emergency assessment the same day. Cord pressure is time sensitive, and a vet needs to grade the problem before anyone decides whether it can be watched.

How vets usually evaluate and treat it

Evaluation starts with a physical and neurological exam to locate the problem and grade any weakness. X-rays can show a malformed bone, and Merck notes that specialised imaging such as a CT scan may be needed to judge whether a spinal defect can be corrected with surgery, with MRI used where the cord itself needs to be assessed. Where signs are present, care can include rest, pain relief, and weight control, and a dog with cord pressure may be referred to a neurology or surgery specialist to discuss stabilisation. Where there are no signs, the finding is usually recorded and watched, which is why the wording in the next box matters even for a dog that seems completely well.

Policy wording to check: The word to hunt for is congenital. A hemivertebra is present from birth, so a policy that excludes congenital conditions can exclude the finding, the imaging that investigates its signs, and any surgery linked to it, all at once. Ask in writing whether congenital spinal malformations are covered for a Pug, whether a malformation found by chance and causing no signs affects later spine claims, and whether advanced imaging and specialist neurology are covered services.

The breeder screening file, in plain language

No other breed guide on this site has quite this file. A Pug puppy can come with four different kinds of evidence, and each kind proves a different thing. One is a DNA susceptibility result that is not a diagnosis. One is a breathing grade given after an exercise test. One is a specialist eye examination that is a snapshot on a date. One is a hands on kneecap grade. Owners often treat the file as a single pass or fail stamp. It is not. It is four separate records with four separate dates, and an insurer reading a claim will treat them separately too. Use this section to read any breeder's file, and to build the file for a dog you already own.

The Pug Dog Club of America, shortened to PDCA, sets the breed's record under the Canine Health Information Center program, shortened to CHIC, run with the Orthopedic Foundation for Animals. The PDCA required tests for CHIC are the PDE susceptibility DNA test, an eye examination under the CERF or ACVO schemes, and a patella evaluation, together with permanent identification by microchip or tattoo. CERF and ACVO both refer to specialist eye examination schemes, and ACVO is the American College of Veterinary Ophthalmologists. The club's optional and recommended list adds hip evaluation, spine evaluation, trachea evaluation, cardiac evaluation, a DNA test for pyruvate kinase deficiency, and serum bile acids testing. The AKC's own health testing list for the breed names hip evaluation, an eye examination by a board certified ACVO ophthalmologist, patellar luxation evaluation, and the PDE DNA test. The two lists agree on the core. Where they differ, the club list is the wider one.

Pug screening evidence checklist (sources: Pug Dog Club of America health pages; AKC Toy Group health testing requirements)
RecordWhat to ask forWhat it provesWhat it does not prove
PDE susceptibility DNA testThe laboratory result for each parent, and for the puppy if it was tested, stated as N/N, N/S, or S/S, with the dog's name and the test date. This is a required CHIC test for the breed.Whether this dog carries the marker pattern linked to susceptibility to Pug Dog Encephalitis, and how many copies were found.It does not prove the dog has PDE, and it does not prove the dog will never develop PDE. UC Davis states the test shows susceptibility only and is not a diagnosis. The next subsection explains each result.
Eye examination (CERF or ACVO)The dated eye examination form from a board certified veterinary ophthalmologist, as the breed program expects. This is a required CHIC test for the breed.That a specialist examined this dog's eyes on that date and recorded what was found, or found nothing, on that day.It does not prove the eyes stay clear. An eye examination is a snapshot, not a lifetime clearance, and a normal exam in a young dog does not rule out an ulcer, dry eye, or pigment that develops later.
Patella evaluationThe registered result and grade for each parent, with the examination date. This is a required CHIC test for the breed.That a veterinarian graded this dog's kneecaps on that date, and what the grade was.It does not prove a puppy's knees. A parent's grade is evidence about breeding stock, and a puppy's own knees are graded at the puppy's own exams.
Permanent identificationThe microchip number or tattoo recorded with the CHIC file, matching the dog in front of you.That the records in the file belong to this dog, and not to another dog with a similar name.It proves nothing about health. Its job is to tie every other record to the right dog.
Hip evaluationThe hip evaluation result and date. The AKC lists hip evaluation in its health testing requirements for the breed, and the PDCA lists it among its optional tests.That this dog's hips were X-rayed and scored under a formal scheme on that date, and what the score was.It does not prove a puppy's hips, and a good score in a parent does not rule out joint signs in an individual dog later.
Spine, trachea, and cardiac evaluationsEach result the breeder holds, with its date. The PDCA lists spine evaluation, tracheal hypoplasia evaluation, and cardiac evaluation among its optional tests. Tracheal hypoplasia means a windpipe narrower than it should be.That this dog was assessed for that named structure on that date, and what was recorded.An optional test a breeder did not run is a gap, not a failure, and a normal spine film does not rule out a malformation elsewhere in the spine.
PK deficiency DNA test and serum bile acidsThe laboratory results, with dates. The PDCA lists a DNA test for pyruvate kinase deficiency, a red blood cell enzyme condition, and serum bile acids testing, which is a liver function blood test, among its optional tests.Whether this dog carries the named DNA variant, and what the liver function result was on that date.Neither result speaks to the airway, the eyes, or PDE. Each optional test answers its own narrow question only.

The PDE susceptibility result, in plain words: N/N, N/S, and S/S

This subsection exists because this result is the most misread line in any Pug file. The test is run by laboratories including the UC Davis Veterinary Genetics Laboratory, and it looks for a pattern of genetic markers linked to Pug Dog Encephalitis. Every dog has two copies of the relevant section, one from each parent. The result states how many of those copies carry the susceptibility pattern.

N/N means no copies of the susceptibility pattern were found. UC Davis classifies N/N dogs as low risk. Low risk is not no risk, and an N/N result is not a promise that the dog can never develop the disease.

N/S means one copy of the susceptibility pattern was found and one copy was not. UC Davis also classifies N/S dogs as low risk. A carrier style reading, in which one copy is treated as halfway to disease, is not what the laboratory says about this test.

S/S means two copies of the susceptibility pattern were found. UC Davis states that dogs with two copies are at substantially higher risk of developing the disease than dogs with zero or one copy. Substantially higher risk is still risk, not certainty. Many S/S dogs never develop PDE. The laboratory publishes exact risk figures on its test page, which is linked in the Sources section, and those figures belong to the laboratory's own current wording rather than to a summary here.

The warning that matters most is the one UC Davis prints with the test itself. The test shows susceptibility only. It is not a diagnosis, it cannot confirm PDE in a dog that is ill, and it cannot rule PDE out in a dog with neurologic signs. Treat the result the way the laboratory treats it. It is breeding information and a dated risk record. It belongs in the file, it should be shared with your vet, and it should be described to an insurer in the laboratory's own terms, never upgraded into a diagnosis and never hidden as if it were one.

The breathing grade, in plain words: RFGS grades 0 to 3

The Pug is one of only three breeds validated for the Respiratory Function Grading Scheme, shortened to RFGS. The other two are the Bulldog and the French Bulldog. The scheme was developed by the University of Cambridge BOAS Research Group with the Kennel Club, it launched in the United Kingdom in 2019, and the Orthopedic Foundation for Animals adopted it in the United States. A trained assessor listens to the dog's breathing before and after a 3 minute exercise tolerance test, and grades what is heard together with the dog's breathing effort. The minimum age for grading is 12 months, because a younger dog's airway is still developing. The grades run from 0 to 3.

Grade 0 means the dog is clinically unaffected and free of respiratory signs. Grade 1 means the dog is clinically unaffected, with mild respiratory signs that do not affect exercise performance in the scheme's terms. Grade 2 means the dog is clinically affected, with moderate respiratory signs. Grade 3 means the dog is clinically affected, with severe respiratory signs. OFA and Cambridge both treat grades 2 and 3 as clinically affected, which is the line that matters for breeding decisions and for how the record reads later.

For insurance, read the grade as a dated record, the same way the BOAS condition guide explains grading across flat faced breeds. A grade 0 or grade 1 certificate documents how well this dog breathed on that date, assessed in a standard way. A grade 2 or grade 3 certificate documents that signs were already present on that date. Neither is a coverage promise, and neither is a diagnosis of everything in the airway. Grade because it helps the dog, the vet, and the breeding record. Keep the certificate with the policy file, and ask the classification question in the checklist below before enrollment if a grade already exists.

Three habits make this whole file useful rather than decorative. First, check that each record names the dog, the date, and the result, and that the identification in the file matches the dog, because a verbal summary from a breeder is not a record. Second, note the gaps honestly. A file with a PDE result and a patella grade but no current eye examination is a partial file, and the missing piece is the one that goes stale fastest. Third, keep the whole file with the insurance policy from the first day. If a claim is ever questioned, the question will be about dates. A complete, dated file answers it in one folder instead of a scramble through old messages.

One caution belongs here in plain words. A screening result is a medical record, and a result recorded before a policy starts can be read by an insurer as evidence about the dog's history. That is not a reason to avoid testing. Untested dogs get the same conditions, with worse records and later care. It is a reason to enroll early, ideally before the puppy's own record grows, and to ask the classification questions in the checklist below in writing while the file and the policy are both new.

A fawn Pug with a black mask standing on a light floor indoors, wrinkled face, large dark eyes, and a tightly curled tail clearly visible

Tonight or tomorrow morning? A Pug signs table

No sibling guide on this site has this table, because no other breed on the site combines these three emergencies in one small dog. In a Pug, breathing signs, eye signs, and neurologic signs can all present as something is wrong tonight, and all three are time sensitive, but they need different speeds, different first steps, and different claim records. Fold trouble and a skipping back leg sit at the other end of the same table, because part of owning this breed well is knowing what is genuinely routine. This table is general information, not a diagnosis. Signs like these can have other causes, and only a veterinarian who examines your dog can say what is going on. When in doubt, treat the sign as one level more urgent than the table suggests, and call your vet.

Pug signs at home, sorted by what to do next
Sign groupWhat you may seeWhat to do next
Breathing distressLaboured or gasping breathing, breathing that looks like hard work at rest, a blue or grey tongue or gums, collapse, or panting that does not settle after coming indoors to a cool room.Emergency, now. Go to an emergency hospital and call ahead to say a flat faced dog is in breathing distress. Keep the dog calm and cool on the way, with air moving. Do not muzzle the dog, and do not delay to film or to feed.
Eye emergencyAn eye held shut, a cloudy or spotted area on the clear front of the eye, heavy pawing at an eye, a swollen looking eye, or sudden vision loss.Same day care. Call a vet or emergency clinic now and describe a painful or cloudy eye in a Pug. Stop the dog rubbing the eye if you can do so calmly. Do not use leftover eye drops unless a vet directs it.
Neurologic changeA seizure, sudden behaviour change, a sudden unsteady or abnormal gait, head pressing, or sudden blindness.Emergency, now. Go to an emergency hospital. Time the episode if you can do so safely, keep the dog away from stairs and water, and note what happened before and after the episode for the vet.
Fold redness and odourRedness, moisture, discharge, or a sour smell inside a facial fold or under the tail fold, with the dog otherwise eating, breathing, and moving normally.Routine vet visit. Book a prompt appointment, gently clean and thoroughly dry the folds as your vet has shown you, and start the fold log described below so the vet can see how often this happens.
Skipping on a back legA sudden skip or hop on a back leg for a few steps, then normal walking again, with no fall, no cry of pain, and full weight bearing afterwards.Vet visit, and note the dates. Book an appointment for a kneecap check, write down each date the skipping happens and what the dog was doing, and take that list to the visit. A leg that will not bear weight is a different sign and needs prompt care.

The habit that ties this table to insurance is a dated signs log. Keep one note on your phone or in a notebook, and add a line each time a sign in this table appears. Write the date, the sign in plain words, how long it lasted, what the weather and the activity were for a breathing entry, which eye for an eye entry, and what you did next, including the name of the clinic if the dog was seen. The log takes a minute. It helps a vet see a pattern that a single visit can miss, it shows whether fold infections or skipping episodes are becoming more frequent, and it creates the clear timeline that any claim review will look for. A short video of noisy breathing at rest, or of a skipping gait, saved with its date, belongs in the same folder as the log and the screening file.

Policy decisions that matter for a Pug

For a Pug, read a policy from the exclusions inward, not from the benefits outward. Does the wording that carves things out carve out this breed's airway, eyes, brain, skin, knees, and spine? Work down this table in order, because the first rows can make the later rows irrelevant.

Policy featureWhy it matters for a PugStronger wording looks likeWatch out for
Hereditary and congenital coverageBOAS anatomy, PDE susceptibility and disease, hemivertebrae, and luxating patella are inherited or present from birth. This row decides more Pug claims than any other.Hereditary and congenital conditions are covered on the same terms as other illnesses.Hereditary or congenital exclusions, low separate limits, or coverage that starts only after a long special wait.
Brachycephalic and airway wordingThe airway is the breed's defining risk, and Cornell lists the Pug among the breeds where obstruction is seen most often.Airway conditions, including BOAS and corrective surgery when a vet recommends it, are covered for flat faced breeds with no breed carve out.A brachycephalic or flat faced exclusion buried in definitions, or airway surgery treated as elective.
Eye surface and eye surgery wordingUlcers, dry eye, and pigmentary keratitis are recurring surface problems, specialist care is common, and the second eye can follow the first.Eye surface disorders, including hereditary ones, are covered, with ophthalmologist visits, long term dry eye care, and eye surgery named as covered care.Eye exclusions for this breed, ulcer care that ends after the first episode, or cover that stops at the first eye.
Chronic skin renewal wordingFold dermatitis repeats inside the same folds, and allergic skin disease is lifelong. Both are judged at renewal, not only at the first claim.Repeat flares and repeat fold infections are counted under a clear rule, and a covered skin condition stays covered at renewal.Each flare treated as a new condition with a new deductible, or skin cover that thins out after the first year.
Orthopedic waiting period and the bilateral ruleKneecaps and hips come in pairs, patella grades are recorded from puppyhood, and surgery is a grade based decision.Each side is judged on its own record, with clear terms for the second side and for grades recorded early.An orthopedic waiting period that resets the clock, or wording that treats the second knee as pre-existing after the first is diagnosed.
Neurologic and MRI coverageA seizure or gait change workup runs through a neurologist and advanced imaging, and PDE care is specialist led and open ended.Neurologic conditions, MRI, specialist neurology referral, and seizure care are covered services.Neurologic exclusions, imaging covered only after a diagnosis the imaging itself is needed to make, or a hereditary exclusion that removes the breed's named brain disease.
Prescription food and weight wordingWeight is an airway issue in this breed, and a vet may recommend a prescription weight plan as part of breathing, knee, or skin care.The policy states plainly whether prescription food is covered, excluded, or covered only for named conditions, so the weight plan has no surprises.Assuming a recommended diet is covered because a vet recommended it, when the wording excludes food of every kind.
Waiting periods and pre-existing definitionsPug records start early and casually, as a breathing note, a breathing grade, an eye finding, a kneecap grade, or a PDE susceptibility result.Short, listed waiting periods, and a pre-existing definition tied to signs a vet recorded and explained, with susceptibility results addressed by name.Long orthopedic, eye, or airway waiting periods, and definitions that turn any early screening record, including a risk marker that is not a diagnosis, into a permanent exclusion.

Life stages: puppy, adult, and senior

Puppy

The puppy stage builds the file. Ask the breeder for the screening record set out above, for both parents and, where the breeder has them, for the puppy itself. A PDE susceptibility result for the parents, a first specialist eye examination, and permanent identification can all exist before a puppy comes home. A breathing grade cannot. Grading starts at 12 months of age, so a puppy file with no grade is complete for its age, not missing a piece. Start fold care in the first weeks, gently and briefly, so an adult Pug treats fold cleaning as routine rather than as a wrestling match. Enrolling in the first weeks at home, before the puppy's own vet record adds a breathing comment, an eye note, or an itch note, is the single most valuable move a Pug owner makes. The waiting periods every policy carries then run while the puppy is at its healthiest.

Adult

Adulthood is when the breed's list usually declares itself. Cornell places most BOAS diagnoses between one and four years of age, which is also the window in which a first breathing grade can be recorded, at or after 12 months. The first itchy seasons of allergic skin disease tend to show in a young adult dog, fold infections settle into their pattern, kneecap skipping becomes obvious in an active dog, and the eye surface starts its long management story. PDE belongs to this stage too. UC Davis notes that younger dogs, and female fawn Pugs under seven in particular, are more apt to develop it, so a seizure or behaviour change in a young adult Pug is never a watch and wait sign. Do not let any of these become background noise in the house. Get each one examined and written down properly, keep the eye examinations going, and check at each renewal that the conditions the dog now carries are still described as covered. If you change insurers in adulthood, the new policy will judge the dog on the record that already exists, screening file included.

Heat and weight deserve their own habits in this breed, at every age. Walk in the cool parts of the day, rest in shade, and treat a hot and humid forecast as a reason to shorten the walk rather than push through it. Keep a simple breathing and weight log through the warm months. Note the date, the weather and the activity, how the breathing sounded and how hard it looked, how long recovery took after coming indoors, the dog's weight when you have it, and what you did next. The log takes a minute, it helps a vet judge whether the airway is changing, and it creates the clear timeline any airway claim review will look for. A video of noisy breathing at rest, saved with its date, belongs in the same folder.

Breathing and weight watch log (copy the columns into a notebook or phone note)
DateWeather and activityBreathing noise and effortRecovery after coming inWeightWhat you did next
Example entryHot and humid evening, short lead walk, no running.Louder than usual, snorting at rest afterwards.Settled slowly in a cool room.Noted from the most recent vet visit.Shortened the next walk, saved a dated video, booked a vet check.

Senior

A Pug senior is a dog managing a long list at once. Pigment that has crept across an eye for years can narrow vision, dry eye medicine continues, arthritis can build behind an old kneecap grade, skin and fold care continue, and an airway that has worked for a decade needs gentler handling in heat and under anaesthesia. Weight control matters as much at this stage as it did at two years old, because it loads the airway, the knees, and the hips at the same time. Keep the home logs going, breathing, mobility, appetite, vision, and sleep, because change over time is what a vet, and any claim review, needs to see. Ask the vet at each senior visit which findings are new and which are continuations, and make sure the record says so. That distinction is what keeps a long, honest record readable at claim time.

A claim, step by step: a corneal ulcer

The example below is hypothetical. It is not a real dog, a real claim, or a guarantee of how any insurer will decide. It follows an adult Pug through a painful eye, a surface workup, treatment and rechecks, and the record questions that decide the claim, because that full arc is what Pug eye coverage has to handle. Pet insurance generally reimburses after you pay the vet, as explained in how pet insurance works.

  1. The sign, and the notes that start the file

    On a Saturday morning the owner finds the dog holding one eye shut and pawing at it, with a cloudy spot visible on the clear front of the eye. The owner calls the clinic the same morning, which is the right speed for this breed and this sign. The vet records the finding, the date, and the owner's history of when the change began, and the signs log already holds the time the owner first saw it. That timeline matters, because the insurer will later compare it with the policy start date, the waiting periods, and any earlier eye examination form in the screening file.

  2. The surface workup

    The vet examines the eye and eyelids, runs a fluorescein stain test that shows the size and depth of the ulcer, and runs a Schirmer tear test to check whether dry eye sits behind it. The cause the vet finds is written into the record in plain terms, whether that is a scratch, a foreign body, an eyelid problem, or dryness. That single sentence about cause is the sentence the claim will later turn on, because it is what separates an injury reading from an illness reading under the policy definitions.

  3. Checking the eye wording before treatment settles

    Before the recheck schedule is set, the owner checks three things in writing. Whether corneal ulcers and dry eye are covered for a Pug under this plan, or sit inside an eye or breed condition exclusion. Whether an ulcer following an injury is handled as an accident claim, an illness claim, or either. And whether specialist referral and repeat rechecks are covered services if the ulcer deepens. A short written answer from the insurer at this stage is worth more than a long argument after the bills exist.

  4. The treatment and the rechecks

    The eye is treated by depth and cause, with topical medicine, pain control, and protection from rubbing. Dry eye support starts alongside it if the tear test showed low production. The recheck visits are part of the same episode. Each one restains the surface to judge healing, and each note is collected with its invoice. The owner pays the clinic directly and keeps the itemised invoices, the full records, and every recheck note together, because a surface claim is usually several small documents rather than one large one.

  5. Submitting the claim

    The claim is filed with the invoices and the complete records, including the first visit where the ulcer was found, the stain and tear test results, and the screening file eye examination. If the insurer asks for earlier records, sending them promptly and completely is better than sending selected pages, because a gap in the timeline invites the worst reading of it. The claim total is checked against what pet insurance costs and why for how deductibles, reimbursement rates, and annual limits apply to an accepted claim.

  6. Where Pug eye claims get denied

    The pressure points are timing and wording. An eye note dated before coverage or during a waiting period. An eye exclusion the owner had not found. An ulcer reclassified because its recorded cause was an underlying condition the policy treats differently. Dry eye medicine separated from the ulcer episode and judged on its own. And incomplete records that leave the insurer unable to tell when the change began. Each risk is reduced by enrolling early, reading the eye clause before the dog needs it, getting the dog seen the same day, and keeping the full record, screening file and signs log included.

What drives a Pug premium

No responsible guide will name a price for your dog, because the quote depends on the dog, the address, and the settings chosen. What can be explained is why a Pug is priced the way it is, and which choices move the number. The full mechanics are in what pet insurance costs and why.

Breed risk profile. Insurers see a breed whose core conditions are anatomical and inherited at the same time. Breathing, eyes, skin, knees, and spine do not depend much on luck, and several of them involve specialists, imaging, or surgery. Judge any Pug quote against the exclusions table above, not against the headline benefit list.

Small dog, specialist bills. A Pug is a small dog, and medication doses and handling follow its size. Specialist time does not shrink with the dog. An ophthalmologist's workup, an airway assessment under anaesthesia, a neurologist's MRI workup, or advanced spine imaging costs what it costs because of the specialist and the equipment, not the weight of the patient.

Age curve and lifespan. Premiums generally rise with age. A breed that lives 13 to 15 years spends a long middle in the years when skin, fold, knee, and eye claims repeat, and then reaches a senior stage where a second eye and a second knee can both need care. A policy that is weak on eye, chronic condition, and renewal wording is weak for most of this dog's life, not just at the end of it.

Location and plan settings. Vet prices in your area set the bill sizes the insurer expects, and specialist and emergency care vary widely by market. For this breed, picture one eye episode with its rechecks plus a year of skin care in the same policy year when you size the limit, because that combination is a normal Pug year, not a freak one.

Pre-purchase checklist for a Pug policy

  • Read the breed condition exclusions first, and check the Pug core list against them one condition at a time.
  • Confirm hereditary and congenital conditions are covered, including BOAS anatomy, PDE, hemivertebrae, and luxating patella.
  • Ask how a PDE susceptibility result, a breathing grade, an eye examination form, and a patella grade recorded before enrollment would each be treated at claim time.
  • Get a written answer on corneal ulcers, dry eye, and pigmentary keratitis, and on how the second eye is treated if it is affected later.
  • Ask whether an ulcer that follows an injury is handled as an accident claim, an illness claim, or either.
  • Ask how chronic skin conditions, repeat fold infections, and repeat flares are counted, and whether allergy testing and immunotherapy are covered.
  • Read the bilateral rule with eyes and kneecaps in mind, not just one pair.
  • List every waiting period that could touch this breed, including illness, orthopedic, and any eye, airway, or hereditary specific period.
  • Keep the breeder screening file, the signs log, and your written insurer answers together with the policy, and enroll as a puppy, before the record grows.

Questions to ask an insurer, in writing

Copy each question exactly as written, name the breed, and keep the written answers with your policy documents. A verbal answer on a sales call is not part of your contract. A written answer shows what you were told before you relied on it.

  1. Airway. Is brachycephalic obstructive airway syndrome covered for a Pug under this plan, and is corrective surgery on the nostrils and soft palate a covered treatment, or is either excluded as a breed condition?
  2. PDE classification. My Pug holds a PDE susceptibility DNA result recorded before enrollment, stated as N/N, N/S, or S/S. The testing laboratory states that this result shows susceptibility only and is not a diagnosis. How is that result classified under this plan, and does it affect later claims for neurologic care?
  3. Breathing grade classification. My Pug holds a Respiratory Function Grading Scheme result recorded before enrollment, graded 0, 1, 2, or 3. How is that dated grade treated under this plan, and would a grade 2 or grade 3 result make later airway care pre-existing?
  4. Corneal ulcer classification. Are corneal ulcers covered for a Pug under this plan, is an ulcer that follows an injury handled as an accident claim or an illness claim, and are dry eye and pigmentary keratitis covered conditions or excluded eye conditions for this breed?
  5. Neurologic care. Are seizures, specialist neurology referral, and MRI covered services for a Pug under this plan, and are hereditary neurologic conditions covered or excluded?
  6. Skin and spine. How are repeat skin fold infections and repeat allergy flares counted at renewal, and are congenital spinal malformations such as hemivertebrae, including CT or MRI imaging and specialist care if back signs appear, covered for a Pug?

Questions Pug owners ask

Is BOAS covered by pet insurance for a Pug?

It depends on the exact policy wording. Some accident and illness policies cover brachycephalic obstructive airway syndrome as a hereditary or congenital condition, and some exclude airway conditions in flat faced breeds, limit corrective surgery, or apply a special waiting period. Ask the insurer in writing whether BOAS, narrowed nostrils, and a long soft palate are covered for a Pug under the exact plan, and keep the answer with the policy.

My Pug has a PDE susceptibility result. Does that mean my Pug has Pug Dog Encephalitis?

No. The UC Davis Veterinary Genetics Laboratory test measures susceptibility only. It is not a diagnosis. A result of N/N means no copies of the marker pattern were found, N/S means one copy, and S/S means two copies. UC Davis states that dogs with two copies are at substantially higher risk, and that many dogs with a higher risk result never develop the disease. Keep the dated result with the policy file and ask the insurer in writing how a susceptibility result recorded before enrollment is classified.

Is a corneal ulcer in a Pug an accident claim or an illness claim?

It depends on the cause and on the policy definitions. An ulcer that follows a scratch or a foreign body may be read as an injury, while an ulcer linked to dry eye, pigmentary keratitis, an eyelid problem, or another underlying condition may be read as illness. Either way, an eye held shut, a cloudy spot on the eye, or heavy pawing at the eye needs same day care. Keep the vet record that names the cause the vet found, because that record is what the claim will be judged on.

Does a breathing grade affect pet insurance for a Pug?

It can, because a Respiratory Function Grading Scheme result is a dated medical record. The scheme grades breathing from 0 to 3 after a short exercise test, and grades 2 and 3 mean the dog is clinically affected. A grade recorded before enrollment can be read by an insurer as evidence of how the airway was on that date. Keep the certificate with the policy file, and ask in writing how a grade 2 or grade 3 result recorded before enrollment would be treated.

Are hemivertebrae in a Pug covered, or excluded as congenital?

Hemivertebrae are malformed spine bones present from birth, and they occur in screw tailed breeds including Pugs. Many Pugs with them show no signs at all, and the finding is often noticed by chance on imaging taken for another reason. Because the finding is congenital, a policy that excludes congenital conditions can exclude both the finding and later care linked to it. Ask in writing whether congenital spinal malformations, advanced imaging for back signs, and any surgery linked to them are covered for a Pug.

When should I enroll a Pug in pet insurance?

As a puppy, before a breathing note, a breathing grade, an eye finding, a kneecap grade, a PDE susceptibility result, or a spine finding enters the record in a way that raises a pre-existing question. Pugs can show breed related signs early, and insurers read notes as well as diagnoses when they judge whether a condition is pre-existing. Early enrollment also lets the waiting periods run while the dog is least likely to need the care those periods gate.

Sources and further reading

Sources checked on November 9, 2026.

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