The Shetland Sheepdog is intelligent, driven, and tireless. But herding breeds carry genetic risks - hip dysplasia, eye diseases, and epilepsy are common. An active dog needs an active health budget.
Measured risks
How often they happen is backed by published studies.
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Breed study [3] 23% (1,428 of >6,000 dogs) fell in the heterozygous carrier range for Type I VWD at one reference lab since 1982 (Raymond, Jones, Brooks & Dodds 1990, JAVMA). This is a single reference lab's submitted-sample population, not a randomized general-population sample - flag selection bias, though it is the standard citation used by the breed's own national club.
A bleeding disorder with an unusually high carrier rate in this breed, well-documented by breed-club screening programs. Full profile →
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All dogs All-dogs baseline skin disorder rate; no Shetland Sheepdog-specific breed effect confirmed.
Chronic skin inflammation causing persistent itching and repeated infections. Full profile →
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All dogs All-dogs baseline diagnosed dental disease rate; no Shetland Sheepdog-specific breed effect confirmed.
Periodontal disease affects over 80% of dogs by age 3. Bacteria from infected teeth enter the bloodstream, damaging heart, kidneys, and liver over time. Full profile →
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Breed study [1] 8% mdr1-1D allele frequency in the original US multi-breed panel (Neff et al. 2004, PNAS) - notably lower than Rough/Border Collie (~35-55%). This is allele frequency, not the percentage of dogs carrying at least one copy, and varies by population (one small UK sub-study found 9/15 carried at least one copy).
A genetic mutation that makes common drugs (like ivermectin) dangerous, at a much lower rate than in Collies but still present. Full profile →
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All dogs OFA registry: 4.7% dysplastic of 24,759 dogs evaluated, ranked 166th of 198 breeds (near the low-risk end) - well below the previously-listed 14%. Voluntary breeder-submitted screening data.
Malformed hip joint causing pain, limping, and progressive arthritis. Full profile →
Known risks
Well documented in the breed - but no study has counted how often.
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Breed study NHEJ1 mutant allele frequency ranges from 0.36 (Italian sample, ~50% heterozygous carriers) to 2.8% (Thailand sample, 3.3% heterozygous). Carrier frequency, not clinical disease rate; results vary widely by national population, so no single number should be presented as definitive.
An inherited eye defect shared with the Rough Collie lineage, though carrier rates vary widely by population and are much lower than in Collies.
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Not measured No confirmed Shetland Sheepdog-specific epilepsy prevalence found.
Recurrent seizures requiring lifelong medication and monitoring. Full profile →
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Breed study [2] Three risk loci identified (PAN2, MAP3K7CL, DLA-DRB1) in a cohort of 297 Shelties; specific high-risk genotype combinations showed up to 92% of dogs with that genotype affected, but this describes a rare genotype, not whole-breed prevalence (Evans et al. 2017, PLOS Genetics). No clean population-wide clinical prevalence percentage exists.
A genetic skin and muscle disease found almost exclusively in this breed and the Rough Collie, driven by a complex combination of risk genes. Full profile →
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Not measured No confirmed Shetland Sheepdog-specific osteoarthritis prevalence found.
Chronic joint pain. Management 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 Shetland Sheepdogs?
How much does pet insurance cost for a Shetland Sheepdog?
Is pet insurance worth it for a Shetland Sheepdog?
What is the average yearly vet cost for a Shetland Sheepdog?
What pre-existing conditions affect Shetland Sheepdog insurance coverage?
Does pet insurance cover hip dysplasia in Shetland Sheepdogs?
How much does progressive retinal atrophy treatment cost for a Shetland Sheepdog?
Why does my Shetland Sheepdog insurance premium keep going up every year?
Can I switch pet insurance if my Shetland Sheepdog has a diagnosed condition?
What does pet insurance not cover for Shetland Sheepdogs?
Should I get pet insurance or self-insure my Shetland Sheepdog?
What questions should I ask before insuring my Shetland Sheepdog?
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 Neff MW, et al. Breed distribution and history of canine mdr1-1D, a pharmacogenetic mutation that marks the emergence of breeds from the collie lineage. PNAS. 2004.
- 2 Evans JM, et al. Beyond the MHC: A canine model of dermatomyositis shows a complex pattern of genetic risk involving novel loci. PLOS Genetics. 2017.
- 3 Raymond SL, Jones DW, Brooks MB, Dodds WJ. Clinical and laboratory features of a severe form of von Willebrand's disease in Shetland sheepdogs. JAVMA. 1990.
- 4 OFA Orthopedic Foundation for Animals - Shetland Sheepdog hip dysplasia breed statistics (screened population).