Hereditary Conditions and UK Pet Insurance: What Gets Covered

The direct answer

Yes, most UK pet insurers cover hereditary conditions, as long as the condition first shows signs after the policy starts. None of the mainstream insurers checked for this article excludes hereditary conditions as a category; the dividing line is pre-existing status, meaning signs or symptoms before cover began or during the first days of it. That single test decides far more claims than the word hereditary on its own.

Hereditary, congenital, breed-linked

The words get used loosely, so it helps to separate them. Congenital means present from birth; hereditary means inherited through genes, and the signs may not appear for years. The British Veterinary Association, which runs the Canine Health Schemes with the Royal Kennel Club, describes hereditary disease as including both conditions that exist from birth and those that develop later.

Many of the best-known problems are complex inherited disorders: hip dysplasia is driven by several genes plus diet, exercise and other environmental factors, which is why it appears across many breeds and in crossbreeds too. Breed-linked risk is a separate idea again: certain breeds carry higher odds of certain conditions. VetCompass research at the Royal Veterinary College found pugs were almost 54 times more likely than other dogs to have a breathing disorder recorded.

The conditions themselves

The best-known hereditary conditions divide into a few groups for dogs, and cats carry their own list.

• Joints: hip dysplasia, scored by the BVA and Kennel Club scheme out of 106, and elbow dysplasia, graded 0 to 3.
• Breathing and spine: brachycephalic obstructive airway syndrome, or BOAS, graded 0 to 3 under the Kennel Club and Cambridge scheme; and syringomyelia and Chiari malformation, which have their own screening scheme.
• Heart and eyes: mitral valve disease, particularly in Cavalier King Charles Spaniels, and the hereditary eye conditions covered by the BVA eye scheme.
• In cats: hypertrophic cardiomyopathy, with higher risk in Maine Coons, Persians and Ragdolls; polycystic kidney disease, a particular problem in Persians; and hip dysplasia, more common in larger breeds such as Maine Coons.

How insurers handle them

In practice, the cover question is not the diagnosis but the timing.

Petplan says hereditary conditions such as hip dysplasia are covered where they have not shown symptoms before the policy starts, and congenital conditions are covered on the same basis, provided they were not diagnosed or showing symptoms before cover. Waggel's wording does not name hereditary or congenital conditions as exclusions; it excludes pre-existing conditions, defined as signs or symptoms before the start of cover or within the first 14 days, plus anything a vet links to them.

ManyPets says it usually covers hip and elbow dysplasia unless they count as pre-existing. Pet Protect states the same rule: congenital or hereditary conditions are covered provided they are not present or apparent when the policy starts.

Two wrinkles catch owners out. First, bilateral conditions. Insurers generally treat a condition appearing on both sides of the body, such as a knee problem in both back legs, as one condition.

If it showed on one side before cover, the other side is treated as pre-existing too. Waggel, Animal Friends, ManyPets and Napo all work this way, and the Financial Ombudsman sees disputes where the timing of the first signs decides the outcome.

Second, switching: waiting periods at a new insurer still apply to new conditions, and some insurers waive them only for owners arriving with an unbroken record of cover elsewhere. Waggel applies a 14-day warm-up on new policies.

Breeding cover and health testing

Agria, which also writes the Royal Kennel Club's policies, is the one that sells breeding-specific cover. Its Breeding Risks add-on attaches to the mother's lifetime policy and covers her and the litter through pregnancy and the first weeks of life: fertility exams and whelping (birthing) complications are each covered up to £1,000 a year, and up to £2,500 in the event of the mother's death.

Behind that sits the testing infrastructure owners increasingly ask about: the schemes described above, plus publicly searchable health test results.

What the conditions cost

Hereditary conditions are rarely one-off bills. A UK veterinary cost guide puts hip dysplasia diagnosis at £200 to £650, first-line treatment or surgery at £1,000 to £7,000 with an average around £3,500, ongoing management at £50 to £200 a month, and a possible lifetime total of £20,000. The Association of British Insurers cites elbow dysplasia treatment passing £50,000 in extreme cases. Mitral valve disease brings diagnosis costs plus medication that can run £50 to £100 a month for years.

Practical questions

Does insurance cover hereditary conditions in pedigree dogs?

Pedigree or not, the test is the same: conditions showing signs after the policy starts are generally covered, hereditary or not; those showing before are generally not. Crossbreeds develop these conditions too, which is why hip dysplasia, for one, appears across breeds and mixes.

Are hip dysplasia and BOAS always covered?

Not always. Hip dysplasia is treated as a normal illness where its first signs come after cover begins, and breathing problems in flat-faced dogs follow the same rule, though some insurers extend waiting periods for specific conditions such as cruciate ligament claims. Check the wording, and ask before you buy if the breed is known for the condition.

Can I insure a pet with a known hereditary condition?

A condition that has already shown signs counts as pre-existing and is normally excluded, so timing is everything: cover arranged before symptoms appear is the version that responds to them. If a pet is already affected, keeping lifetime cover running usually beats switching, because a new policy starts fresh pre-existing rules.

Does this apply to cats too?

Yes. Cat cover works on the same timing test: conditions such as hypertrophic cardiomyopathy or polycystic kidney disease are generally covered where their first signs come after the policy starts, and the pre-existing and bilateral rules apply in the same way.

Answer the health questions honestly, get cover in place before symptoms appear, and use the health schemes when choosing a breeder. Heredity loads the dice; timing decides the claim, and the cheapest hereditary condition is the one a pet never develops.