The English Toy Terrier is tough, spirited, and full of energy. But terrier breeds face their own health challenges - knee problems, skin allergies, and dental disease can add up fast.
Measured risks
How often they happen is backed by published studies.
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All dogs General canine obesity prevalence; not mentioned in any of the breed's own health surveys (2004, 2014, or 2018 Canadian survey, n=229) and no English Toy Terrier-specific effect confirmed.
Up to 40% of adult dogs are overweight. Obesity accelerates joint deterioration, increases cardiac load, and shortens life expectancy by 1-2 years. Full profile →
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Breed study [2] 17.5% (7 of 40 dogs with reported dental issues) required tooth removal due to gingivitis or gum disease in the 2018 Canadian Manchester Terrier Club survey (n=229); dentition is the breed's #2 ranked health priority per the UK Kennel Club Breed Health and Conservation Plan (2021).
This breed's own health survey found a real, elevated rate of gum disease requiring tooth removal, and it is the breed's #2 ranked health priority. Full profile →
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All dogs All-dogs baseline skin disorder rate. The 2004 KC survey found dermatologic conditions in 10% of reported cases and the 2014 survey found demodex infestation among the top-4 tied conditions, but these figures conflate different categories - no clean English Toy Terrier-specific allergy rate exists.
Chronic skin inflammation causing persistent itching and repeated infections. Full profile →
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Breed study [2] 7.9% (18 of 229 dogs) in the 2018 Canadian Manchester Terrier Club health survey; also the most commonly reported condition in the 2004 and 2014 UK Kennel Club surveys, and the #1 ranked breed health priority per the Breed Health Co-ordinator's 2019 report (UK Kennel Club Breed Health and Conservation Plan, 2021).
This breed's own health surveys confirm this as the single most commonly reported condition and the breed's #1 ranked health priority. Full profile →
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Breed study [3] 7.4% (17 of 229 dogs) in the 2018 Canadian breed health survey; a separate peer-reviewed retrospective study of the closely related Toy Manchester Terrier (same breed/gene pool, US name) found 3.81% (23/603 dogs), peak incidence age 7-10 years (Gelatt & MacKay 2005, Veterinary Ophthalmology).
This breed has a real, confirmed cataract rate from both a peer-reviewed retrospective study and the breed's own health survey. Full profile →
Known risks
Well documented in the breed - but no study has counted how often.
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Breed study [1,4] A fully-penetrant autosomal recessive ABCC9 missense variant causes juvenile dilated cardiomyopathy and sudden cardiac death; all 26 affected dogs in a genetics study were homozygous, and 69 of 398 clinically normal controls (17.3%) were heterozygous carriers, commonly rounded to ~20% by testing labs (Furrow, Tate, Minor, Martinson et al. 2023, Genes). Deaths reported as early as 10 weeks of age; a separate histologic case series found 10 of 14 affected dogs died suddenly (Legge et al. 2013, Veterinary Pathology). Replaces a heart murmur/MVD placeholder that the breed's own survey found affects only about 4-6% of dogs, with this more consequential and better-documented condition.
This breed carries a real, gene-confirmed, often-fatal heart disease affecting puppies, at a strikingly high estimated carrier rate. Full profile →
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Breed study 1.3% (3/229) epilepsy specifically, and 2.6% (6/229) any seizure, in the 2018 Canadian breed health survey.
Recurrent seizures. Medication Full profile →
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Breed study Only 1 case out of 229 dogs in the 2018 Canadian breed health survey - far below the prior placeholder figure. No dedicated genetics or epidemiology study for Legg-Calve-Perthes in this breed was found.
This breed's own large health survey found this condition is far rarer than commonly assumed. Full profile →
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Breed study Only 1 case out of 229 dogs in the 2018 Canadian breed health survey, alongside 2 Cushing's disease cases and 1 diabetes case under endocrine conditions - far below the prior placeholder figure.
Underactive thyroid. Lifelong medication Full profile →
How we know these numbers
- Confirmed = measured or gene-confirmed specifically in this breed
- Breed study = scientists counted it in this exact breed
- Body type = comes from the dog's build - size, skull, skin
- Genetic risk = the gene is proven, the odds are not
- All dogs = an average for all dogs, not this breed
- Not measured = nobody has counted it yet
- How we grade evidence →
Most owners sign a policy based on ads, but learn the real rules only when their first big claim gets denied. We don't want to scare you. We want to prepare you.
Price Explosion Premium creep
Hostage Status Pre-existing
The Year 6 Rule Age limit
Symptom = Game Over Pre-existing
Bilateral Exclusion Bilateral
AI Claims Adjuster Coverage
Orthopedic Waiting Period Waiting period
UCR Limits Exclusion
Common Questions
Real answers about costs, treatment, and insurance coverage.
What is the most common health problem in English Toy Terriers?
How much does pet insurance cost for a English Toy Terrier?
Is pet insurance worth it for a English Toy Terrier?
What is the average yearly vet cost for a English Toy Terrier?
What pre-existing conditions affect English Toy Terrier insurance coverage?
Does pet insurance cover luxating patella in English Toy Terriers?
How much does allergies & skin issues treatment cost for a English Toy Terrier?
Why does my English Toy Terrier insurance premium keep going up every year?
Can I switch pet insurance if my English Toy Terrier has a diagnosed condition?
What does pet insurance not cover for English Toy Terriers?
Should I get pet insurance or self-insure my English Toy Terrier?
What questions should I ask before insuring my English Toy Terrier?
Similar dogs
My mother-in-law's boxer. Problem. $1,200 in tests, no answers. Another vet solved it with $8 pills. When you're scared, you'll pay anything - and some vets price accordingly. So I built what I couldn't find: real costs, real exclusions, plain language. Not selling policies.
Sources
Research and data used to compile this profile.
- 1 Furrow E, Tate N, Minor K, Martinson S, et al. An ABCC9 Missense Variant Is Associated with Sudden Cardiac Death and Dilated Cardiomyopathy in Juvenile Dogs. Genes. 2023.
- 2 English Toy Terrier Breed Health and Conservation Plan. UK Kennel Club. 2021.
- 3 Gelatt KN, MacKay EO. Prevalence of primary breed-related cataracts in the dog in North America. Veterinary Ophthalmology. 2005.
- 4 Legge CH, Lopez A, Hanna P, Cote E, Hare E, Martinson SA. Histological characterisation of dilated cardiomyopathy in the juvenile Toy Manchester Terrier. Veterinary Pathology. 2013.