KENAI
French Bulldog

The breeds · companion

AKC Non-Sporting · UKC Companion · FCI standard 101

French Bulldog.

Companion: the standard describes well behaved, adaptable and comfortable companions with an affectionate nature and even disposition, generally active, alert and playful but not unduly boisterous. Descended from the toy Bulldogs that Nottingham lace workers took to northern France in the 1850s (UK registry history).

Breed sets the odds. The parents set the dog. Every number here shows its source, its spread and how sure we are. Nothing on this page is a prediction about one dog.

9.8YRMedian lifespan · sources differ9.4 to 10.1, measured on real dogs. A second study puts life expectancy at birth at 4.5; both are shown below.
12INHeightall 12. An ideal from the standard, not a range.
24–31LBWeight, all linesbreed 27.4 lb (24.3 to 30.9).
1HRSExercise, every dayUp to 1 hour per day. The constraint most homes get wrong.

The body

What the breed is built like. Registry standards give an ideal, not a range.

Height at the shoulder

12 in (11 to 13)

Breed clubAKC

The standard sets no height (it governs proportion and a weight limit); this is the registry breed page's typical band. Center is its midpoint.

Weight

27.4 lb (24.3 to 30.9)

MeasuredO'Neill DG, 2021

Low and high are the study's interquartile range, not a standard range. The adult weights of breeding stock fall under the standard's 28 lb ceiling; the UK primary-care population plainly straddles it.

Coat

Brilliant, short and smooth; skin soft and loose, especially at the head and shoulders, forming wrinkles; coats other than short and smooth disqualify. White, cream, fawn or combinations, with brindle, piebald, black mask, black shading and white markings; solid black, black and tan, blue, liver, merle and the rest disqualify

Breed clubAKC breed standard, 2018

Shedding

Sheds (RKC 'Sheds: yes'); short smooth coat

Breed clubThe Royal Kennel Club

Heat tolerance

1 of 5 · Brachycephalic: the standard calls for an extremely short nose with heavy wrinkles over it. In UK primary care in 2016 the breed had one of the highest incidences of heat-related illness (0.18%, 95% CI 0.12-0.25, against 0.04% for all dogs) and was among nine breeds with significantly higher odds than Labrador Retrievers; brachycephalic dogs overall had 2.10 times the odds (95% CI 1.68-2.64) of mesocephalic dogs

DerivedHall EJ, 2020

The coat is short and smooth, which alone would score 5; the scale's bottom tier is reserved for a short muzzle, and the heat-illness and airway evidence puts the breed there regardless of coat. VetCompass 2021: French Bulldogs had 30.89 times the odds of brachycephalic obstructive airway syndrome (95% CI 20.91-45.64) and 42.14 times the odds of stenotic nares of other dogs. The breed rescue states the dogs overheat quickly because of their extremely short noses and inability to cool the air they breathe.

How long they live, and what they costSources differ

Two numbers, two measures. Median lifespan: in a large sample of this breed, the age by which half had died; read it as the typical lifespan (UK, 2024, 584,734 dogs). Life expectancy at birth: how many years a newborn of this breed is expected to live, worked from the death rates at every age in UK veterinary records, the same life-table method used for people (VetCompass, 2022). It runs lower because every early death pulls the average down and because it comes from clinics, not registries. KENAI leads with the median and shows the other beside it. Neither is averaged.

Median lifespan

9.8 years (9.4 to 10.1)

MeasuredMcMillan KM, 2024

Life expectancy at birth

4.5 years (4.1 to 5.0)

MeasuredTeng K.T., 2022

Sources differ with median_lifespan_yr: a different measure and a different sample; both shown, never averaged. The authors warn this figure is pulled down by the breed's soaring popularity (UK Kennel Club registrations rose from 2,771 in 2011 to 39,266 in 2020), which biases the sample toward young dogs whose deaths weigh heavily in a hypothetical cohort life table, and by a relatively small sample (n = 232); they say the variation may be partly attributable to that popularity rather than to health alone. Read from Table 3 on the PMC copy (PMC9050668).

What it costs

Embrace (Q2 2025): an average cost PER CLAIM of approximately $490, not a lifetime total. The release says French Bulldogs continue to generate some of the highest average claim costs at Embrace, had the most allergy claims of any breed that quarter, and cites a single BOAS claim of $30,327

EditorialEmbrace Pet Insurance, 2025

The figure is an average per claim, not a lifetime total, from one insurer's quarterly release of its own internal claims data (Embrace, Q2 2025). Insured dogs are a self-selected population, so the figure describes Embrace's policyholders, not the breed.

The dog at home

What the breed asks of a day. The first thing most homes get wrong.

Exercise need

Up to 1 hour per day

Breed clubThe Royal Kennel Club

RKC band mapped: up to 1 hour = 60. The breed rescue advises exercising only in cool morning or evening hours.

Exercise need

Up to 1 hour per day

Breed clubThe Royal Kennel Club

Energy

3 of 5

Breed clubAKC

AKC breed page trait score, 1 to 5: a breed-club tendency, never a measurement.

Grooming load

2 of 5 · Once a week (RKC grooming band); coat length short; sheds

Breed clubThe Royal Kennel Club

RKC band mapped: weekly brush = 2. Skin folds need separate attention: skin fold dermatitis is among the breed's most common disorders.

Grooming

Once a week

Breed clubThe Royal Kennel Club

Why they get given up

The national breed rescue says its dogs come from owners who can no longer care for them for any reason, from shelters and humane societies, from breeders retiring dogs, from puppy mills, as strays, and from authorities in abuse or neglect cases; it notes many surrendered dogs have not done well with children

EditorialFrench Bulldog Rescue Network

One rescue's statement, not a count. Single editorial source.

The work

What it was built to do in the field, and what a test or trial asks of it.

Role

Companion: the standard describes well behaved, adaptable and comfortable companions with an affectionate nature and even disposition, generally active, alert and playful but not unduly boisterous. Descended from the toy Bulldogs that Nottingham lace workers took to northern France in the 1850s (UK registry history)

Breed clubAKC breed standard, 2018

Not a gun dog or a working breed; hunting-specific traits are omitted.

How common the problems are

Evaluated dogs skew toward breeding stock; the numbers are still the best there are.

Hip dysplasia

33.1% · 33.1% dysplastic of 5,175 OFA hip evaluations on record (all data through Oct 2026); 64.9% normal (3.1% excellent, 38.3% good, 23.4% fair); mild 22.3%, moderate 8.5%, severe 2.3%; breed rank 25 of the breeds listed; dogs born 2021-2023: 32.6% dysplastic of 1,364

MeasuredOrthopedic Foundation for Animals

Voluntary registry: affected dogs are under-reported and evaluated dogs skew toward breeding stock, so true prevalence is higher. The 2021-23 birth-year hip columns are carried in the OFA statistics service's data but are not displayed on the rendered page.

Elbow dysplasia

7.5% · 7.5% abnormal of 2,136 OFA elbow evaluations on record (grade 1 6.3%, grade 2 1.1%, grade 3 0.1%); breed rank 60

MeasuredOrthopedic Foundation for Animals

Same voluntary-registry caveat as hips. OFA patella: 6.7% abnormal of 9,007 evaluations (grade 1 4.9%, grade 2 1.4%, grade 3 0.3%), rank 20. OFA tracheal hypoplasia: 1.0% abnormal and 1.7% equivocal of 2,491. OFA chondrodystrophy (CDDY/IVDD) DNA: of 255 tested, 61.6% carried two copies, 32.5% one, 5.9% none. OFA BAER hearing: 1.8% abnormal and 0.4% equivocal of 278 (the service reports normal, equivocal and abnormal; it does not split unilateral from bilateral deafness).

Most common disorders

UK French Bulldogs under primary care in 2013 (n = 2,228; 72.4% with at least one disorder; median age 1.3 yr): otitis externa 14.0% (95% CI 12.6-15.5), diarrhoea 7.5%, conjunctivitis 3.2%, nails overlong 3.1%, skin fold dermatitis 3.0%; by group, cutaneous 17.9%, enteropathy 16.7%, aural 16.3%, upper respiratory tract 12.7%, ophthalmological 10.5%

MeasuredO'Neill DG, 2018

VetCompass primary-care records on a very young population; the authors expect the profile to shift as the cohort ages. The 2021 VetCompass comparison (2,781 French Bulldogs vs 21,850 other dogs, 2016) found higher odds of 20 of 43 common disorders, led by stenotic nares (OR 42.14), brachycephalic obstructive airway syndrome (OR 30.89), aural discharge (OR 14.40), skin fold dermatitis (OR 11.18) and dystocia (OR 9.13). The UK Kennel Club 2014 owner survey (Wiles 2017; 330 live dogs, median age 1.81 yr, 37.0% with a condition) ranked allergic skin disorder 4.85%, BOAS 4.85%, otitis media 3.64%, persistent vomiting 3.03%, patellar luxation 2.73%, intervertebral disc disorder 2.73%.

More

akc bands

AKC breed page trait scores (1-5): Energy Level 3; Mental Stimulation Needs 3; Trainability Level 4; Barking Level 1; Watchdog/Protective Nature 3; Good With Young Children 5; Openness To Strangers 5; Good With Other Dogs 4; Shedding Level 3; Coat Grooming Frequency 1; Drooling Level 3; Affectionate With Family 5; Playfulness Level 5; Adaptability Level 5.

Breed clubAKC

Fourteen AKC bands in one row; the selector reads each by name. Breed-club ratings: a tendency, never a measurement.

What to ask a breeder for

The health clearances the breed’s own club and registry name. Reference only: what to ask for, never a statement about any dog’s health.

Side by side

Or let the selector rank the French Bulldog against your own answers.

How to read this page

Every value carries a label. Measured means peer-reviewed data on many dogs. Studied means peer-reviewed, smaller or indirect. Breed club means a club or registry states it. Editorial means expert opinion with no measurement behind it. Where two good sources disagree, both are shown and neither is averaged.

Published when the entry rests on the best information available from no fewer than three independent sources, checked by a second pass that did not write it. 13 sources on this page. Found something wrong? Tell us and the correction is logged with its date.

Also called
Frenchie, Bouledogue Français

Every breed, read the same way.

The breed index grows as entries clear the standard. Gun dogs first.

All published breeds

Your french bulldog, on the record.

Log the days, the miles and the birds, and the KENAI app keeps the dog’s story beside the breed’s. Free to start.

Get the app