Health Testing Guide
Otterhound Health Testing Guide
Which tests are mandatory, how to spot responsible breeders — and what it costs when things go wrong.
For the Otterhound we have compiled 1 mandatory and 0 recommended health tests, drawn from breed-club regulations, the University of PEI (CIDD), and OMIA — weighted by severity and heritability.
What this grade means
The rare Otterhound faces challenges due to its very small population, which increases the risk of hereditary diseases. Hip dysplasia (HD) and the life-threatening condition of gastric dilatation-volvulus (GDV) are particularly serious concerns for this large breed. Additionally, Glanzmann's thrombasthenia, a severe blood clotting disorder, can occur, but it is well-managed in breeding programs through targeted genetic testing. Prospective buyers should always ask breeders for proof of these mandatory health tests.
What is health testing?
Every breed is susceptible to certain inherited conditions. Just like humans, dogs inherit predispositions from their parents. Responsible breeders screen their breeding dogs for these conditions and make informed mating decisions to reduce the risk passed on to puppies.
Can health testing guarantee a healthy puppy?
No — but it's the strongest tool we have. Diet, exercise, environment, and genetics all contribute to whether a dog develops a condition. When breeders use the right tests to identify risk in potential parents, the likelihood of many conditions appearing in the puppies drops significantly.
Health issues vary widely across breeds
There's no one-size-fits-all here. For the Otterhound we track 1 mandatory tests plus 0 additional recommended ones. The specific tests and passing thresholds are detailed further below.
Keep in mind
Reliable screening tests still don't exist for many hereditary conditions, and tests for complex polygenic conditions are not always predictive of severity in the puppies. Even so, they're a powerful tool used by every responsible breeder.
Genetic vs phenotypic — and why the difference matters
There are two main types of health tests:
Genetic tests
Screen the dog's DNA for known disease-causing mutations. Can be performed from puppyhood and give a binary result (clear / carrier / affected).
Phenotypic tests
Clinical and imaging exams like X-ray, ultrasound, or ophthalmoscopy. They show how a predisposition actually manifests — usually only conclusive after 12–18 months.
Our health testing levels for the Otterhound
We group breeding programs into three levels based on testing depth. Ask your breeder directly which level they meet.
A breeder at the Great level performs all mandatory tests plus 0 additional clinically recommended screenings that reduce risk in this breed.
In addition to mandatory tests:
We don't currently have tests recorded at this level for the Otterhound.
These levels are a comparison framework, not an official certification. They help compare breeding programs at a glance.
What to ask when visiting the breeder
A complete checklist with every mandatory and recommended test plus identity and rearing questions — take it with you.
For breeders
For breeders: Otterhound breeding suitability
Machine-readable mating rules, minimum ages, scoring schemes, and what's required for HonestDog verification — as a printable guide.
Example rule — Hip dysplasia
Both parents must be C or better or better.
How HonestDog verifies
We compile mandatory tests from official breed regulations and veterinary databases — and check every uploaded certificate for authenticity.
Three-tier model
L1 = mandatory under breed-club regulations. L2 = recommended or clinically indicated. L3 = lower prevalence. Every assignment carries a source and confidence rating.
Sources
VDH-Zuchtordnungen, CIDD (University of PEI), OMIA (University of Sydney), curated veterinary input.
Document review
Uploaded certificates are AI-extracted and reviewed by our team for authenticity, date, and result.
Frequently asked questions about Otterhound health
1 tests are currently mandatory under the relevant breed-club regulations. The most common are Hip dysplasia (HD). Every test must be completed before mating, and the result must fall within the threshold defined by the regulation.
Verified Otterhound breeders on HonestDog
See breeders who have already uploaded their mandatory tests for verification.