French Bulldog Health Problems: 12 Common Issues and Prevention

Sources: McMillan et al., Scientific Reports, 2024; O’Neill et al., Canine Medicine and Genetics, 2021; O’Neill et al., Canine Genetics and Epidemiology, 2018.

If you love a French Bulldog, you’ve heard the warnings: breathing problems, bad backs, endless itching. Some of it is true and some is exaggerated. This guide covers what Frenchies actually get most often, how serious each problem is, what’s genetic and what you can do about it.

The honest frame: a Frenchie’s flat face, screw tail and compact spine come with built-in risks, and you can’t change those genes. You can change a lot around them, from body weight and heat to food, early vet care and which puppy you bring home. Most sections link to an in-depth guide.

Affiliate disclosure: some product links in this guide are Amazon affiliate links. As an Amazon Associate, BFB earns from qualifying purchases, at no extra cost to you. It never changes what we recommend.

The Big Picture: How Healthy Are French Bulldogs?

French Bulldogs have higher odds than other dogs for many common health problems. In UK vet records, 72% had at least one problem recorded in a single year, and the largest lifespan study found a median of 9.8 years, against 12.5 for dogs overall. Most of the extra risk comes from their flat face, compact spine and a narrow, inbred gene pool.

How often they get sick. Of 2,228 French Bulldogs at UK vet practices in 2013, 72.4% had at least one disorder recorded during the year, at a median age of just 1.3 years. Ear infections, diarrhea and conjunctivitis topped the list (O’Neill et al., 2018). A separate study of 2016 records found Frenchies had higher odds than other dogs for 20 of 43 common disorders and lower odds for 11. Overall, 63.4% of those young Frenchies and 66.1% of the older comparison dogs had at least one disorder recorded, so the difference is in which problems they get (O’Neill et al., 2021).

How long they live. The biggest study so far, of 584,734 UK dogs, found a median lifespan of 9.8 years for French Bulldogs against 12.5 for all dogs (McMillan et al., 2024). You may see much lower numbers online, such as 3.6 or 4.5 years. Those come from a very young, fast-growing UK Frenchie population, and the authors say that pulls the figure down (O’Neill et al., 2018; Teng et al., 2022). We use 9.8 years as the most reliable figure.

Median Lifespan: French Bulldogs vs Other Dogs

Years. UK data from 584,734 dogs. Bars are scaled so 14 years fills the track.

• Medium-muzzled purebreds12.8 yrs
• All dogs12.5 yrs
• Flat-faced purebreds11.2 yrs
• French Bulldog9.8 yrs

Why: body shape. Most top problems come from conformation. A shortened skull leaves too much soft tissue in too little space, affecting breathing, eyes, skin folds and digestion, and the compact spine and screw tail come with disc and vertebra changes. These traits were bred on purpose, so they run through nearly the whole breed.

Why: a narrow gene pool. A 2021 study of 49,378 dogs from 227 breeds found that the average purebred dog is about as inbred as a puppy from two full siblings. Flat-faced breeds were more inbred and needed more veterinary care than other breeds, and across breeds, less inbred dogs were healthier (Bannasch et al., 2021). The study didn’t report a figure for French Bulldogs specifically.

The Most Common French Bulldog Health Problems

The most common French Bulldog health problems are allergies, ear infections, narrowed nostrils and other airway problems, malformed vertebrae, eye inflammation, skin fold infections, tartar, disc disease and corneal ulcers. Compared with other dogs, Frenchies have by far the highest odds of narrowed nostrils and BOAS, followed by ear discharge and skin fold infections.

The table below uses one source for every row: a 2025 German survey of 574 Frenchie owners reporting vet-diagnosed conditions over the dog’s life (Hinze et al., 2025). Owners were recruited through Facebook groups, so dogs with problems may be overrepresented, but at a median age of 4 it’s closer to what you’ll face than records from very young dogs.

The 10 Most Common Diagnoses in a 2025 Frenchie Owner Survey

Share of 574 French Bulldogs ever diagnosed with each condition, as reported by their owners.

#	Condition	Share of dogs
1	Allergies (diagnosed or presumed)	52%
2	Ear infection (outer or middle ear)	36%
3	Narrowed nostrils (stenotic nares)	35%
4	Elongated soft palate	26%
5	Hemivertebrae (wedge-shaped vertebrae)	25%
6	Conjunctivitis	22%
7	Skin fold dermatitis	20%
8	Dental tartar (calculus)	19%
9	Disc disease (IVDD)	18%
10	Corneal ulcer	15%

Compared with other dogs in UK vet records, Frenchies had far higher odds of several problems. These are odds, not percentages: 1.8% of these young Frenchies had narrowed nostrils recorded that year, against almost none of the other dogs (O’Neill et al., 2021).

Where Frenchies Stand Out: Odds Compared with Other Dogs

Adjusted odds ratios in UK veterinary records. The gold line marks 1×, the same odds as other dogs. Bars are scaled so 45× fills the track.

• Narrowed nostrils42.1×
• BOAS30.9×
• Ear discharge14.4×
• Skin fold dermatitis11.2×
• Difficult birth (dystocia)9.1×
• Allergic skin disorder7.7×
• Food hypersensitivity7.0×
• Musculoskeletal injury5.5×
• Corneal ulcer4.4×
• Spinal cord disorder (grouped)3.0×

Some problems were less common in Frenchies, including obesity and gum disease. The catch: the Frenchies were much younger (median about 1.5 years against 4.5). The researchers adjusted for age, but in our view youth likely still explains much of it (O’Neill et al., 2021).

Higher Odds vs Lower Odds in French Bulldogs

Compared with other dogs in the same UK practices. Lower odds may partly reflect how young the Frenchies were.

Higher odds

• Breathing: narrowed nostrils, BOAS, upper respiratory infection
• Skin: fold dermatitis, allergies, food hypersensitivity, demodex mange
• Ears: discharge and outer ear infection
• Eyes: corneal ulcers
• Spine, birth problems and kneecaps

Lower odds

• Obesity: 0.30× (about 70% lower odds)
• Gum disease: 0.31× (1.6% vs 12.8%)
• Lameness: 0.26×
• Skin lumps: 0.38×

This guide groups everything into 12 problem areas:

1. Breathing problems (BOAS)
2. Spinal disc disease (IVDD)
3. Skin allergies
4. Skin fold infections
5. Ear infections
6. Eye problems
7. Gut and digestive problems
8. Heatstroke
9. Birth problems and C-sections
10. Joint problems: kneecaps and hips
11. Cancer and brain disease
12. Dental problems

Breathing Problems and BOAS

BOAS (brachycephalic obstructive airway syndrome) is a blocked airway caused by a short skull: narrow nostrils, a long soft palate and crowded throat tissue. It’s the breed’s signature problem. In Cambridge research samples about 59% of Frenchies were clinically affected, and many owners don’t notice. A formal breathing grade after a 3-minute trot is the best way to know.

How common BOAS is depends on how you look. Researchers who exercise-test dogs find far more than vets record in routine visits.

How Common Is BOAS? It Depends How You Look

Share of French Bulldogs, by study method. Bar width = percentage.

• Owner-reported BOAS-type signs (Germany)64%
• Clinically affected on exam (Cambridge research)59%
• Grade 2–3 among graded breeding dogs (UK)16%
• Formal vet diagnosis (German owner survey)13%
• Recorded by UK vets in one year5.5%

Narrow nostrils matter most. In a Cambridge study of 214 Frenchies, 58.9% were clinically affected (grade II–III). Three in four had moderately to severely narrowed nostrils, which raised the odds of clinical BOAS about 5.7 times. Males had about twice the odds of females. Body condition wasn’t a significant factor in Frenchies in that study (Liu et al., 2017).

Owners often miss it. In an earlier Cambridge study, 18 of 30 owners whose Frenchies tested BOAS-positive said their dog rarely or never had noisy or hard breathing during exercise (Liu et al., 2015). In the German survey, 78% of Frenchies snored (Hinze et al., 2025). Common, yes, but Hemopet, founded by Dr. Jean Dodds, points out that snoring isn’t normal.

Get a formal grade. The Respiratory Function Grading Scheme (RFGS), developed with the University of Cambridge and run by the Royal Kennel Club in the UK and the Orthopedic Foundation for Animals (OFA) in the US, grades dogs from 0 to 3. A trained vet listens to the throat before and after a brisk 3-minute trot. Grades 0 and 1 are clinically unaffected; 2 and 3 are affected. Grading starts at 12 months, with yearly checks suggested until age 2 (Orthopedic Foundation for Animals).

It’s more than noise. BOAS tends to worsen over time (Fawcett et al., 2019), and flat-faced dogs had about 5.6 times as many blocked-breathing events in their sleep in a Finnish study (Niinikoski et al., 2024).

Surgery helps most dogs that need it. In a study of 72 pugs and Frenchies who had nostril widening and soft palate surgery, 88.5% of owners who replied reported improvement (Haimel & Dupré, 2015). Timing is a decision to make with a specialist surgeon. Our French Bulldog BOAS guide covers grades, surgery options, costs and daily management in depth.

What helps. No food, herb or supplement can widen a narrowed nostril or shorten a soft palate, and integrative vets agree: Dr. Karen Becker writes that severe cases often need surgery. Around the structure, daily habits still matter. Keep your Frenchie lean, since Hemopet notes that extra weight adds to airway obstruction and heat intolerance in flat-faced breeds.

Use a harness, skip exercise in heat and humidity and keep stress low. In her advice for dogs with airway disease, Dr. Judy Morgan also clears the air at home: no smoke or scented candles, plus a humidifier and a HEPA filter. These are low-risk comfort steps with little formal research behind them. A breathing grade and your vet tell you whether surgery is the right call.

Spine Problems: IVDD and Hemivertebrae

Disc disease (IVDD) is the most common serious spine problem in French Bulldogs. Nearly all Frenchies carry a gene variant that makes discs age early, and in a French hospital study disc herniation caused nearly half of all neurological cases, at a median age of 4. Wedge-shaped vertebrae are also common, but most never cause symptoms.

The disc gene. With the FGF4 retrogene (CDDY), the soft center of each disc starts turning stiffer and cartilage-like in the first year of life (Brown et al., 2017, describing classic work by Hansen). In a UC Davis series, 70.6% of French Bulldogs had at least one calcified disc on X-rays, and Frenchies had disc surgery younger than other breeds, at about 4 years on average (Batcher et al., 2019). In UC Davis data the variant made up 97% of gene copies in 106 Frenchies, and one copy is enough to change the disc (Bannasch & Bellone, UC Davis Veterinary Genetics Laboratory, which holds a patent interest in the test).

How it shows up. At a French referral hospital, disc herniation explained 45.5% of 343 neurological cases in French Bulldogs, at a median age of 4.0 years (Mayousse et al., 2017). Frenchies often slip a disc in the neck: 30% of 327 Frenchie disc extrusions in a UK study, with about 18 times the odds of Dachshunds (Abouzeid et al., 2025). In a Swiss study, 52.7% of 127 Frenchies who had disc surgery had another episode later, though more than half of those repeat episodes weren’t MRI-confirmed (Leu et al., 2023).

Outcomes are often good with fast care. Across pooled studies in the 2022 specialist consensus, about 93% of paralyzed dogs that still felt deep pain walked again after surgery, against about 60% with medical care alone (Olby et al., 2022). Costs add up: the full bill at a specialty hospital with MRI, a hospital stay and rehab can reach $10,000–$15,000 (Southeast Veterinary Neurology, 2024), one reason we push insurance early.

Hemivertebrae, in perspective. Every Frenchie tested in one study carried two copies of the DVL2 screw-tail variant, linked to malformed vertebrae, though not every dog develops them in the mid-back (Mansour et al., 2018). In a UK CT study, 58 of 62 Frenchies with no spinal signs (93.5%) had at least one wedge-shaped vertebra. They’d been scanned for other reasons, and only one of 105 Frenchies seen had symptoms from a mid-back malformation (Ryan et al., 2017). Another UK study found hemivertebrae weren’t linked to disc extrusion, but a marked mid-back curve (kyphosis) roughly doubled the odds (Inglez de Souza et al., 2018).

What helps. Keep your Frenchie lean and active, use a harness and teach calm habits like using a ramp. Integrative vet Dr. Judy Morgan adds moderate exercise to build supporting muscle and lifting your dog with support under both the front and back end. After an episode, basic rehab is recommended.

Dr. Karen Becker writes that electroacupuncture often helps dogs with IVDD when a formally trained practitioner does it, and small studies suggest acupuncture can help some dogs as an add-on to your vet’s plan. Weight evidence is mixed: one hospital study linked higher body condition with disc extrusion (Packer et al., 2013), while a survey of more than 2,000 Dachshunds found no link but lower odds in dogs exercised over an hour a day (Packer et al., 2016).

Our French Bulldog IVDD guide covers signs, surgery and recovery, and our training guide shows how to teach spine-smart habits.

Skin Allergies, Skin Folds and Ear Infections

Skin and ear problems are the everyday health issues of French Bulldogs. In a 2025 survey, 52% had diagnosed or presumed allergies and 36% had had ear infections, and ear infection was the top problem UK vets recorded in a year. Allergies, skin fold infections and ear infections often travel together, so treat them as connected.

Allergies. In the German survey, 49% of Frenchies had a food allergy or sensitivity, and 72% of those were diagnosed in the first two years of life. Owners most often presumed or identified grains (69%), chicken (51%) and beef (19%) as triggers, though these weren’t all vet-confirmed (Hinze et al., 2025). UK vet records show the same pattern: Frenchies had 7.7 times the odds of allergic skin disease and 7 times the odds of food hypersensitivity compared with other dogs (O’Neill et al., 2021). Allergic skin disease isn’t caused by one gene: a 2022 study in four other breeds found 15 risk regions (Tengvall et al., 2022).

Skin folds. The wrinkles over the nose and around the tail trap moisture and debris. Frenchies had 11 times the odds of skin fold dermatitis in UK records (O’Neill et al., 2021), and 20% of surveyed Frenchies had been diagnosed with it (Hinze et al., 2025). A quick daily look at the folds, wiping and drying them when needed, is cheap prevention; redness, smell or discharge means a vet visit.

Ears. Outer ear infection was the single most common problem in the 2013 UK records, affecting 14% of Frenchies in one year (O’Neill et al., 2018). Food-allergic Frenchies had 2.8 times the odds of ear infections (Hinze et al., 2025), so recurring ears often point to an allergy. Deeper ear infections can affect balance (Mayousse et al., 2017). Repeat infections deserve a look for the root cause.

What helps. Start with a diagnosis. Integrative vet Dr. Judy Morgan has the ear swabbed and checked under the microscope (with a culture for stubborn cases) before choosing a treatment, and she keeps water and peroxide out of the ear. Dr. Becker adds that over-cleaning can itself cause ear trouble.

For itchy, inflamed dogs, Dr. Morgan, who is trained in Traditional Chinese Veterinary Medicine (TCVM) food therapy, moves away from kibble and starchy food toward “cooling” proteins such as rabbit, duck and cold-water fish. Food energetics comes from clinical tradition, not controlled trials, so use it as one tool alongside your vet’s plan. Keep folds clean and dry, as Dr. Becker advises for Frenchies, and look for the allergy behind repeat ear and fold infections.

Integrative vet Dr. Katie Woodley ties recurring allergies to the gut barrier, uses omega-3s as a foundation (they can take up to 12 weeks to work) and keeps prescription itch medicines as a bridge during flares, never stopped abruptly (Woodley, 2026). Our French Bulldog allergies guide covers elimination diets and treatment, and our gut health guide covers the gut side.

Eye Problems: Corneal Ulcers, Cherry Eye and Conjunctivitis

French Bulldogs’ prominent eyes make them prone to corneal ulcers, cherry eye and conjunctivitis. In UK records, Frenchies had about 4.4 times the odds of corneal ulcers compared with other dogs, and 15% of surveyed owners reported one over their dog’s life. A squinting, watering or cloudy eye needs a vet the same day.

Corneal ulcers. A scratch or erosion on the clear front of the eye. In the 2013 UK records, 2.1% of Frenchies had one in a single year (O’Neill et al., 2018); the odds were 4.4 times those of other dogs in 2016 (O’Neill et al., 2021), and 15% of German owners reported one at some point (Hinze et al., 2025). Ulcers can get worse quickly, so don’t wait and see.

Cherry eye. A pink swelling in the inner corner of the eye, where the third-eyelid gland pops out. It affected 2.6% of young UK Frenchies in one year (O’Neill et al., 2018). A separate VetCompass study of 2016 UK records found flat-faced breeds had about 7 times the odds of cherry eye compared with breeds with medium-length skulls (O’Neill et al., 2022). It isn’t usually an emergency, but book a visit soon.

Conjunctivitis and other findings. Conjunctivitis was the third most common problem in the UK records (3.2% in a year) and was reported in 22% of German survey dogs (O’Neill et al., 2018; Hinze et al., 2025). In specialist eye exams of 2,322 Frenchies, 75.3% were normal (OFA data reported by the French Bull Dog Club of America). A harness instead of a collar avoids pressure that raised eye pressure in flat-faced dogs in a small study (Bailey et al., 2025).

What helps. Most eye problems in this breed are structural, so treatment is your vet’s job, and an ulcer can’t wait. For everyday support, integrative vet Dr. Judy Morgan suggests carotenoid-rich foods such as blueberries, eggs, carrots and kale, plus omega-3s, and she wants flat-faced dogs to have an eye-pressure test at their yearly exam. Food for eye health is sensible but hasn’t been tested in Frenchies, so think of it as support, not treatment. A harness, clean facial folds and fast action on any squint matter more.

Gut and Digestive Problems

Gut problems are common in French Bulldogs: two in three surveyed Frenchies had digestive signs at some point, and gut disease was the second most common problem group in UK vet records. Frenchies had 2.5 times the odds of gastroenteritis, and many dogs with BOAS also regurgitate or vomit, so the airway and the gut are linked.

The numbers. In UK records, 14.1% of Frenchies had a gut disorder diagnosed in a single year, second only to skin. They had 2.55 times the odds of gastroenteritis, though diarrhea and vomiting on their own were no more common than in other dogs (O’Neill et al., 2021). In the German survey, 67% had shown digestive signs at some point and 10% had had pancreatitis (Hinze et al., 2025).

The airway connection. In a UK surgical study, 93% of Frenchies with BOAS also had digestive signs, which often improved after airway surgery (Kaye et al., 2018). In a 2025 endoscopy study of 176 Frenchies with BOAS, 46.6% regurgitated and 26.7% had a hiatal hernia (Bottero et al., 2025). Slow-feed bowls, smaller meals and good airway care are sensible first steps.

A red flag in young Frenchies. Chronic diarrhea with blood or mucus and straining can be granulomatous colitis, a disease linked with invasive E. coli in a small series of young French Bulldogs. In that series, 6–10 weeks of the right antibiotics brought remission lasting 3 to 30 months (Manchester et al., 2013). Here a proper diagnosis matters more than any home remedy.

Integrative vet Dr. Katie Woodley removes triggers before adding supplements and says a probiotic isn’t automatic (Woodley, 2026). Our French Bulldog gut health guide and our guide to probiotics for French Bulldogs go deeper.

Heatstroke

French Bulldogs overheat easily because their short airways cool them poorly. In UK vet records they had about 6.5 times the odds of heatstroke compared with Labradors, and most heatstroke was triggered by exercise, not hot cars. Walk in the cool of the day, keep your Frenchie lean and treat heavy panting that won’t settle as an emergency.

In a study of more than 900,000 UK dogs, French Bulldogs had 6.49 times the odds of heat-related illness compared with Labradors. Dogs at or above their breed’s average weight had higher odds, and about one in seven affected dogs died (Hall et al., 2020a). About 74% of cases were triggered by exercise (Hall et al., 2020b). The yearly rate in Frenchies was 0.18%, about 1 in 550: uncommon, but dangerous and largely preventable.

• Walk early or late and keep warm-weather play short. Offer air-conditioned, low-humidity rooms.
• Keep your Frenchie lean. Heavier dogs had higher heatstroke odds.
• Know the signs. Heavy panting that won’t settle, a dark red or bluish tongue, wobbling or collapse.
• Act fast. Cool with cool (not ice-cold) water and a fan, and call your vet on the way in.

Birth Problems, Joints, Cancer and Teeth

Beyond the big five, French Bulldogs commonly need C-sections to give birth, have more kneecap problems than other dogs and often show hip changes on X-rays, though lameness is uncommon. Cancer and brain disease matter more as Frenchies age, while dental disease looks low in young dogs but still needs routine care.

Birth Problems and C-Sections

In a UK breed club survey of 22,005 litters, 81.3% of French Bulldog litters (65 of 80) were born by C-section (Evans & Adams, 2010). That survey is old, small for Frenchies and didn’t separate planned from emergency surgeries. In UK vet records, Frenchies had 9.1 times the odds of a difficult birth (O’Neill et al., 2021).

Joints: Kneecaps and Hips

Frenchies had 2.3 times the odds of a slipping kneecap (patellar luxation) in UK records, at 2.0% against 1.0% of other dogs in one year (O’Neill et al., 2021), and 11% of German survey dogs had been diagnosed with it (Hinze et al., 2025).

Hip X-rays look worse: in OFA screening data, 32.6% of 3,314 Frenchie hip X-rays were rated dysplastic, against 11.4% across all breeds, while 5.8% of 5,823 kneecap exams were abnormal (OFA data reported by the French Bull Dog Club of America). OFA results are voluntary submissions, not a random sample, and X-ray changes don’t always mean pain: Frenchies had lower odds of lameness than other dogs in UK records (O’Neill et al., 2021). Treat these as screening findings, not disease rates.

Cancer and Brain Disease

Good Frenchie cancer data are scarce. In the German owner survey, 13% of dogs had been diagnosed with a tumor, and owners named cancer as the cause in 35 of 75 reported deaths (Hinze et al., 2025). That’s a small, owner-reported sample, so treat it as a signal, not a rate. At the French referral hospital, brain tumors made up more than a third of brain disorders in Frenchies, with gliomas the most common type (Mayousse et al., 2017). In UK records, brain disorders were the top recorded cause of death, though in a small, young group (O’Neill et al., 2018). Have any new lump, seizure or behavior change checked promptly.

Teeth

UK Frenchies had much lower odds of gum disease than other dogs, 1.6% against 12.8% in a year, but they were also much younger (O’Neill et al., 2021). In the older German sample, 19% had tartar and 21% had an underbite (Hinze et al., 2025). Brush regularly and get dental checks. Flat-faced dogs carry extra anesthetic risk, as Hemopet’s review notes, so remind the clinic before any procedure.

French Bulldog Genetics and DNA Testing, Honestly

Nearly every French Bulldog carries the disc variant (FGF4) and the screw-tail variant (DVL2), and skull-shape variants are very common in flat-faced breeds, so testing your pet for those changes little. DNA tests are most useful for breeding and for less common recessive conditions. Breathing grade is also partly inherited (about 45% of the variation), which makes parents’ RFGS grades one of the most useful things to check.

You may have read that Frenchies have “six mutations.” We’ve dropped that framing because it mixes very different things: some variants are nearly universal, some are carried by a minority and allergies aren’t a single mutation at all.

• Disc variant (FGF4, CDDY). Among Embark-tested French Bulldogs, only 3.3% were clear, 68.2% carried two copies and 28.3% carried one (Embark Veterinary, 2022). The often-quoted “about 97%” is 100 minus the clear share, not a separate measurement. Embark gives no sample size; its data come from customers who opted into research.
• Screw-tail variant (DVL2). All 79 French Bulldogs tested in one study carried two copies; it’s fixed in the breed (Mansour et al., 2018).
• Skull-shape variants (SMOC2, BMP3). An SMOC2 variant sat on about 92% of flat-faced dogs’ chromosomes in one study and explained about a third of the variation in face length (Marchant et al., 2017). A BMP3 variant is nearly fixed in the most flat-faced breeds, the French Bulldog among them (Schoenebeck et al., 2012).
• Breathing grade. About 45% of the variation in RFGS grade among French Bulldogs is inherited (Ilska et al., 2026), so choosing well-graded parents can help.
• Allergies. Polygenic: many genes each add a little risk (Tengvall et al., 2022).

Degenerative myelopathy (DM), in perspective. Embark reports 27.7% of tested Frenchies as carriers of the SOD1A variant linked to DM and 2.9% as at risk with two copies (Embark Veterinary, 2022). Carrying it doesn’t mean a dog will develop DM. In the French hospital study of 343 Frenchies with neurological disease, degenerative myelopathy didn’t appear among the diagnoses (Mayousse et al., 2017). If your Frenchie’s back legs are weak, a disc problem is far more likely, and an MRI can show whether a disc is the cause.

What a Frenchie DNA Test Can and Can’t Tell You

Carrier and at-risk figures from Embark’s tested French Bulldogs, plus our read on how useful each result is for a pet owner.

Test	What Embark found	Value for a pet	Why
FGF4 / CDDY (discs)	3.3% clear	Changes little	Almost every Frenchie carries it. Spine care is the same either way.
SOD1A (DM)	27.7% carriers, 2.9% at risk	Context	Useful background if back-leg weakness ever appears; essential for breeding.
PRA crd4/cord1 (eyes)	13.9% carriers, 0.6% at risk	Useful	Rarer recessive; matters for breeding and for watching vision.
CMR1 (eyes)	7.8% carriers, 0.2% at risk	Useful	Rare recessive; mostly a breeding tool.

The best way to prevent French Bulldog health problems is a simple routine: keep your dog lean, keep them cool, use a harness, feed a species-appropriate diet, start training and socialization early, work with both a conventional and an integrative vet, get insurance before anything is on record and keep up regular checkups. None of it changes genes; all of it changes outcomes.

The plan follows the same four pillars Dr. Karen Becker and Rodney Habib use in The Forever Dog: diet, optimal movement, genetics and stress, which includes your dog’s environment. You can’t change your Frenchie’s genes, but you can know them and choose parents well. The other three you work on every day: steps 1 and 4 cover food and body weight; steps 2, 3 and 5 cover safe movement, a cool environment and a calm, confident dog; steps 6 to 8 build the care team that catches problems early.

No single step is a guarantee: no study has proven ramps prevent disc disease. But together, a lean, cool, well-handled Frenchie who eats real food and sees the vet early is set up to do better on almost every front.

How to Choose a Healthier French Bulldog Puppy

Choose a puppy whose parents have RFGS breathing grades of 0 or 1, open nostrils and DNA test results, plus eye, kneecap and hip screening. Ask to see the records, not just hear about them. About 45% of the variation in breathing grade is inherited in French Bulldogs, so the parents’ grades are well worth checking.

This is the biggest health decision most owners make. Because about 45% of breathing-grade variation is inherited (Ilska et al., 2026), and narrow nostrils raised the odds of clinical BOAS more than fivefold (Liu et al., 2017), a puppy from well-graded parents with open nostrils starts with better odds.

• Breathing grades for both parents. Ask for RFGS (OFA or Royal Kennel Club) results. Hemopet’s guidance: pair grade 0 or 1 dogs, breed a grade 2 dog only with a 0 or 1, never pair two grade 2 dogs and never breed a grade 3.
• Open nostrils. Pinched, slit-like nostrils on the parents are a warning sign.
• DNA results. Both parents’ panels, including rarer recessive conditions like PRA and CMR1, plus DM status.
• Screening. Specialist eye exams, kneecap checks and hip X-rays for the parents.
• Family history. Ask about C-sections, airway surgery, back problems and allergies. A good breeder answers openly.
• Or adopt. Rescue Frenchies need homes too.

Browse our French Bulldog breeder directory, and favor breeders who share graded, tested parents.

Call your vet now if your French Bulldog struggles to breathe, has blue or gray gums, collapses, can’t walk or can’t cool down. Get a same-day visit for a painful or cloudy eye, sudden back or neck pain or bloody diarrhea. Book a visit soon for ear smell, itchy skin, red skin folds, a new lump or a pink bulge in the eye.

French Bulldog Symptom Decoder

A starting point, not a diagnosis. When in doubt, call.

• Struggling to breathe, blue or gray gums, collapse→Emergency: go now
• Heavy panting that won’t settle, wobbling, dark red tongue on a warm day→Emergency: cool and go
• Can’t walk, dragging legs, sudden wobbliness→Emergency: neurologist today
• Crying when picked up, hunched back, stiff neck, won’t jump or do stairs→Same-day vet
• Squinting, pawing at an eye, a cloudy or very watery eye→Same-day vet
• Bloody or mucus-covered diarrhea, repeated vomiting, lethargy→Same-day vet
• Head shaking, smelly ears, red or smelly skin folds, constant itching→Book a visit this week
• Pink bulge in the inner corner of the eye, a new lump, louder snoring→Book a visit soon

Where the Experts Disagree

Vets and researchers agree French Bulldogs carry real structural risks. They disagree on how much genes decide compared with lifestyle, whether malformed vertebrae matter, how much weight drives back and breathing problems and whether to reform breeding or restrict it.

• How much do genes decide?Dr. Karen Becker argues genes explain only part of disease and lifestyle shapes the rest. For structural problems the breed data point the other way: 42 times the odds of narrowed nostrils (O’Neill et al., 2021) and a breathing grade about 45% inherited (Ilska et al., 2026). Our take: genes load the structural risk; lifestyle changes how hard weight, heat and allergies hit.
• Do hemivertebrae matter?In Frenchies without spinal signs, 93.5% had wedge-shaped vertebrae that rarely caused symptoms (Ryan et al., 2017). In mostly symptomatic Frenchies, 93% of dogs with malformations also had disc disease (Dimitrievski et al., 2026). Our take: the second group was already sick. It’s an association, not proof of cause.
• Does weight drive back and breathing problems?One study linked higher body condition with disc extrusion (Packer et al., 2013); a large Dachshund survey didn’t (Packer et al., 2016). Body condition wasn’t significant for Frenchie BOAS (Liu et al., 2017), but heavier flat-faced dogs handled heat worse (Fawcett et al., 2019) and overweight dogs had more sleep-breathing events (Niinikoski et al., 2024). Our take: keep your Frenchie lean anyway. Lean dogs live longer, even if it isn’t proven to prevent IVDD.
• Breed it better or stop breeding it?Hemopet has raised a temporary breeding pause for flat-faced breeds. Dr. Becker backs health-focused preservation breeders and DNA disclosure. Royal Kennel Club and Cambridge researchers argue selecting on breathing grade, nostrils and weight can improve breathing (Ilska et al., 2026). Our take: support breeders who grade and test.

Frequently Asked Questions About French Bulldog Health Problems

Sources

Research and Reference Data

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Veterinarians Cited

1. Dr. Karen Shaw Becker. Guest on Ben Greenfield Life, “Forever Dog” (transcript), February 23, 2023. The Race Against Time to Save ‘Flat-Faced’ Pets, Bark & Whiskers, March 15, 2023 (updated August 15, 2024); Flat-Faced Dogs’ Health Issues, Bark & Whiskers, January 29, 2024; Acupuncture Healing Therapy for Pets, Bark & Whiskers, originally March 30, 2016; dog ear infections, Bark & Whiskers, December 2022; French Bulldog breed profile, Bark & Whiskers, originally February 19, 2016. Habib R, Becker KS. The Forever Dog. Harper Wave; 2021.
2. Dr. Jean Dodds, Hemopet. Breeding Brachycephalic Dogs and Cats, Part 1, March 11, 2022; Breeding Brachycephalic Dogs and Cats, Part 2, March 18, 2022; OFA Licenses Health Screen for Brachycephalic Breeds, May 14, 2023; Pet Obesity, May 2, 2020. Articles carry the Hemopet byline.
3. Dr. Judy Morgan. Dealing With Heat Stroke in Pets, July 29, 2021; Five Genetic Diseases of Dachshunds, December 20, 2021; Collapsing Trachea, February 1, 2021; Ear Infections Related to Diet?, January 10, 2017; A Proactive Vision for Maintaining Eye Health, May 30, 2023; Annual Check-Up Must-Haves, October 3, 2017; Chinese food therapy for the veterinary clinic, IVC Journal, February 9, 2017.
4. Dr. Katie Woodley. Why Your Dog’s Allergies Keep Coming Back, The Natural Pet Doctor, May 2026; Why Dog and Cat Gut Problems Keep Coming Back, The Natural Pet Doctor, September 11, 2026. (Cited as Woodley, 2026.)

Veterinarians are cited for their published work; their inclusion doesn’t mean they’ve reviewed or endorsed BestFrenchBulldog.com. This guide doesn’t replace your vet. If your Frenchie struggles to breathe, collapses, can’t walk or can’t cool down, call your vet now.