French Bulldog back, breathing and aging: what to watch and when
Watch the breathing, the spine and the kneecaps. UK data put the French Bulldog's median lifespan at 9.8 years, and disc problems tend to show around age 4.
French Bulldog at a glance
The short version
- Disc herniation was 45.5% of neurological cases in 343 referred French Bulldogs, at a median age of about 4 years.
- French Bulldogs had 5.4 times the odds of patellar luxation compared with crossbred dogs in English practice records.
- UK median life expectancy is 9.8 years, so a French Bulldog is a senior from about age 7 by the AAHA 25% rule (our arithmetic).
- A healthy weight and avoiding heat are the measures veterinary sources name for flat-faced dogs.
A French Bulldog owner should watch three things: breathing, the spine and the kneecaps. The breed's median life expectancy in UK data is 9.8 years,2 and its spine problems tend to appear around age 4,4 so the watching starts early.
What is a French Bulldog built for?
The French Bulldog is built small, heavy and compact. The AKC standard describes "an active, intelligent, muscular dog of heavy bone," compactly built, with a weight limit of 28 pounds.1 It sets no height.
The same standard calls for a large square head, a muzzle that is "broad, deep and well laid back," and a roach back that rises over the loin.1 Each feature marks a place where the body carries extra load: the short muzzle at the airway, the short curved spine at the discs, and a heavy body on small knees. That last link is our reading of the build, and the sections below give the evidence for each.
Which spine and joint problems are French Bulldogs prone to?
The spine comes first. A French referral hospital reviewed 343 French Bulldogs seen for neurological problems. Disc herniation was the most common diagnosis, at 45.5% of cases. The median age was about 4 years, and 39.8% of the herniations were in the neck.4 These were dogs already referred to a neurologist, so the figure describes that group and not all French Bulldogs.
In the same study, a smaller group of dogs had spinal cord compression from malformed vertebrae, and hemivertebrae with a marked curve of the spine accounted for most of those cases.4
The kneecap is next. In a study of 210,824 dogs at practices in England, 1.30% had a diagnosis of patellar luxation, and French Bulldogs had 5.4 times the odds of crossbred dogs. Across all breeds the median age at diagnosis was 4.0 years.5
| Condition | What it is | When it tends to show |
|---|---|---|
| Disc herniation | Disc material presses on the spinal cord in the neck or back | Median about 4 years in referred dogs |
| Hemivertebrae | Malformed vertebrae, present from birth, that can curve the spine | Varies; many are found on X-rays |
| Patellar luxation | The kneecap slips out of its groove | Median 4.0 years at diagnosis, all breeds |
Hips are on the parent club's screening list too.7 We could not verify a breed-wide prevalence figure for hip dysplasia. OFA hip statistics come from X-rays that owners chose to submit, so they are not a random sample of the breed.
How long do French Bulldogs live, and when is one a senior?
A UK study of 584,734 dogs put the French Bulldog's median life expectancy at 9.8 years, against 12.5 years for all dogs. Flat-faced breeds as a group had a median of 11.2 years, against 12.8 for breeds with a medium-length muzzle.2 These are UK figures and US dogs may differ.
The American Animal Hospital Association counts a dog as senior in the last 25% of its estimated lifespan.3 By our arithmetic, 75% of 9.8 years is about 7 years. Treat a French Bulldog as a senior from around age 7.
What else should a French Bulldog owner watch?
- Breathing. Brachycephalic obstructive airway syndrome (BOAS) comes from narrow nostrils and an overlong soft palate, among other features. Signs are noisy breathing, low exercise tolerance and open-mouth breathing.6 In UK primary-care records, 12.7% of French Bulldogs had an upper respiratory tract disorder recorded, in a group with a median age of only 1.3 years.8
- Heat. Cornell lists avoiding excessive heat and humidity as part of managing these dogs.6
- Skin. Skin disorders were recorded in 17.9% of French Bulldogs in the same UK records, and skin fold dermatitis in 3.0%.8
What can you do at home?
Keep the dog lean. Cornell names a healthy weight, controlled activity and avoiding heat as the conservative measures for flat-faced dogs with airway signs.6 Extra weight is also extra load on the spine and knees.
Walk in the cool part of the day and keep sessions short enough that breathing stays quiet. That is general guidance for the build, not a study result. Keep notes for your veterinarian: skipped steps on a back leg, reluctance on stairs, and any change in breathing noise.
Check tonight
When your French Bulldog is lying calm and awake, count the breaths for 30 seconds and double the number. Note whether you can hear the breathing from across the room. Write down the number and the date. It is a baseline to show your veterinarian, not a test.
What should you ask your veterinarian?
When to call your veterinarian
- Same day: sudden reluctance to move, crying when picked up, a wobbly walk or dragging back legs.
- Right away: labored or open-mouth breathing that does not settle with rest, or collapse in warm weather.6
Questions to bring:
- Is my dog at a healthy weight, and what is the target number?
- Can you assess the nostrils and airway, and is a respiratory function grading useful for this dog?
- The parent club's CHIC list requires hips, kneecaps, eyes and heart to be checked.7 Which of these has my dog had?
- Which spine signs should send me to you the same day?
Quick answers
How long do French Bulldogs live?
A UK study of 584,734 dogs found a median life expectancy of 9.8 years for French Bulldogs, compared with 12.5 years for all dogs. US figures may differ.
At what age do French Bulldogs get back problems?
In a study of 343 French Bulldogs referred for neurological problems, the median age of dogs with a disc herniation was about 4 years, with a range from under 2 to 13 years.
What health tests should a French Bulldog have?
The French Bull Dog Club of America's CHIC list requires a hip evaluation, an eye exam, a patella evaluation and a cardiac exam. Ask your veterinarian which apply to your dog.
Sources
- American Kennel Club. Official Standard of the French Bulldog
- Scientific Reports (2024). Longevity of companion dog breeds: those at risk from early death (McMillan et al.)
- American Animal Hospital Association (2019). Canine Life Stage Definitions (2019 AAHA Canine Life Stage Guidelines)
- BMC Veterinary Research (2017). Prevalence of neurological disorders in French bulldog: a retrospective study of 343 cases (2002-2016) (Mayousse et al.)
- Canine Genetics and Epidemiology (2016). The epidemiology of patellar luxation in dogs attending primary-care veterinary practices in England (O'Neill et al.)
- Cornell University College of Veterinary Medicine, Riney Canine Health Center. Brachycephalic obstructive airway syndrome (BOAS)
- French Bull Dog Club of America. Health Registries and Vertical Pedigrees (CHIC requirements)
- Canine Genetics and Epidemiology (2018). Demography and disorders of the French Bulldog population under primary veterinary care in the UK in 2013 (O'Neill et al.)
Written by the Tailwise editorial team from the sources above. We are not veterinarians, and this article is not veterinary advice. If something here matches what you see in your dog, talk to your veterinarian.
More years. Better years.
