Border Terriers were bred to chase foxes into their dens and dig them out, and that instinct is fully intact — this is a genuine escape-artist digger with real prey drive, not the mellow 'easy small dog' its friendly, unassuming looks suggest — and the breed also carries a specific, sharply elevated risk of gallbladder disease that most sellers won't mention.
14.2years, median
1.7 years above the all-dog median of 12.5.
Measured, not estimated: the middle age at death across 584,734 UK dogs, 284,734 of them deceased. Based on 11,814 dogs of this breed. 95% confidence interval 14.1 to 14.3 years. Half lived longer than this, half did not. UK dogs, so treat it as the best available figure rather than a promise about yours.
In the same study, small breeds as a group had a median of 12.7 years and medium-muzzled breeds 12.8. This breed is small and medium-muzzled.
McMillan et al. 2024, Scientific Reports 14:531 — open access · CC BY 4.066.4% of Border Terriers had at least one disorder recorded in 2013.
From the clinical records of 1,327 Border Terriers under veterinary care in the UK that year, read by the Royal Veterinary College’s VetCompass programme.
Most often recorded, 2013
| Disorder | Share of Border Terriers | 95% CI |
|---|---|---|
| Gum disease (periodontal disease) | 17.63% | 15.62–19.79 |
| Overweight or obese | 7.01% | 5.69–8.52 |
| Ear infection (otitis externa) | 6.71% | 5.42–8.19 |
| Overgrown nails | 5.28% | 4.13–6.62 |
| Anal sac impaction | 4.75% | 3.67–6.03 |
| Vomiting | 4.37% | 3.34–5.61 |
| Conjunctivitis | 3.32% | 2.41–4.43 |
| Diarrhea | 3.24% | 2.35–4.34 |
| Heart murmur | 2.56% | 1.78–3.56 |
| Lameness | 2.56% | 1.78–3.56 |
Age at death in this sample
Median 12.7 years (middle half 9.3 to 14.3), 2013 data. Of 61 deaths with a record, 54 (88.5%) were euthanasia. The paper gives no cause-of-death table. Different sample and year from the measured lifespan above, which is why the two numbers differ.
England only, 102 practices, 2013.
“The most common disorders were periodontal disease, overweight/obesity and otitis externa. Predisposition to dental and neurological disease was suggested.”— the authors, O'Neill et al. 2017, Canine Genetics and Epidemiology 4:15
Health tests to ask the breeder for
Border Terrier Club of America sets the tests a Border Terrier needs for a CHIC number in the OFA's open database. A CHIC number means the tests were done and the results are public. It does not mean the dog passed them: ask for the results for both parents, or look them up yourself on ofa.org.
- Hip Dysplasia (OFA Evaluation or PennHIP Evaluation)
- Patellar Luxation (OFA Evaluation)
- Eye Examination by a boarded ACVO Ophthalmologist (yearly)
- Cardiac Evaluation (Basic Cardiac Exam by a board-certified cardiologist or Advanced Cardiac Exam/echocardiogram)
- Spongiform Leukoencephalomyelopathy (SLEM, 'shaking puppy') DNA test (or clear by parentage)
When to spay or neuter: the guidelines split at 45 pounds grown, five to six months under it and after growth is complete over it, and the UC Davis study gives a guideline by breed for 35 breeds. The spay and neuter page has both, and the two weeks after.
Test names as the club lists them; checked September 2026. OFA CHIC breed page. How to use this at the breeder: check a breeder.
Adopt a Border Terrier near you
Shelters and rescues list Border Terriers and Border Terrier mixes on Petfinder. Enter a ZIP code to see who is waiting within 100 miles.
Listings come from Petfinder and open there. Petipedia does not take part in adoptions and earns nothing from them.
Living with a Border Terrier
Border Terriers are working earth-dogs at heart — they dig, they'll bolt after squirrels or vermin given the chance, and a garden without secure fencing is a liability, not a safe place to leave one unsupervised. That said, they're famously good-natured and cooperative for a terrier, generally easier to live with day to day than flashier terrier breeds, and the wiry coat needs only weekly brushing plus hand-stripping roughly twice a year.
Health you should know about
- Gallbladder mucocele and related gallbladder disease — one study found Border Terriers roughly 86 times more likely to develop gallbladder mucocele and about 29 times more likely to develop other gallbladder disease than other breeds, plus a markedly higher risk of a related bile-duct inflammation (neutrophilic cholangitis).
- Canine epileptoid cramping syndrome ('Spike's disease') — a paroxysmal cramping/movement disorder recognized in the breed, with a suspected dietary/gluten-sensitivity component in some cases.
- Hip dysplasia and heart murmurs — reported in breed health surveys; screening is recommended for dogs used for breeding.
Read the full Dog Care Guide first — costs, daily time, and everything a dog needs before you choose a breed.
Naming a Border Terrier? Scottish dog and cat names, 79 of them, with what they mean.
Sources — 4 references
Last reviewed October 2026. 4 sources listed below. Written and maintained by Petdeals.io. General care information, not veterinary advice — for a sick animal, call a vet.