The Maine Coon is a stunning, large cat breed that captures hearts. But size brings risk - heart disease, joint problems, and kidney issues are breed realities that demand financial preparation.
Measured risks
How often they happen is backed by published studies.
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Breed study [4] 24.9% dysplastic in the OFA feline hip registry (Loder & Todhunter 2018, J Feline Med Surg); a Swedish breed health-screening program found 37.4% - both are screened/breeder populations, not general-pet-population studies
A malformed hip joint causing pain and progressive arthritis - one of the few cat breeds where this is a recognized orthopedic issue. The figure comes from voluntary breed screening, which skews toward whichever cats get submitted for testing. Full profile →
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Breed study [2] MYBPC3-A31P mutation carrier frequency 41.5% in 2,744 screened Maine Coons, but only 12 of 164 echocardiographed cats (7%) had confirmed clinical HCM - concentrated heavily in cats with two copies of the mutation (Mary et al. 2010, J Vet Cardiol). All-cats baseline is 14.7%.
Thickened heart muscle that can cause sudden death without warning. Maine Coons carry a specific gene mutation that causes this - but carrying the gene and developing the disease are two different numbers. Full profile →
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All cats [5] 1.2% (cats under 9) rising to 3.6% (9 and older), UK primary care (Conroy et al. 2019, Veterinary Record/VetCompass)
Progressive kidney failure requiring dietary management and fluid therapy. This is an all-cats, age-banded baseline - we couldn't confirm a Maine Coon-specific figure. Full profile →
Known risks
Well documented in the breed - but no study has counted how often.
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Not measured No confirmed Maine Coon-specific prevalence found
Chronic joint degeneration causing progressive pain and mobility loss, more likely in a large-framed breed. No Maine Coon-specific figure was found. Full profile →
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Not measured No confirmed Maine Coon-specific prevalence found
Dental disease requiring cleaning or extractions. No Maine Coon-specific study was found - this reflects general feline dental disease patterns. Full profile →
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Not measured No confirmed Maine Coon-specific prevalence found
Weight-related health problems. No Maine Coon-specific figure was found. Full profile →
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Not measured No confirmed Maine Coon-specific prevalence found
Inflammation of the pancreas - often triggered by diet, stress, or concurrent disease. No Maine Coon-specific figure was found. Full profile →
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Not measured No confirmed Maine Coon-specific prevalence found
Urinary blockage requiring emergency and ongoing treatment. No Maine Coon-specific figure was found. Full profile →
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Not measured No confirmed Maine Coon-specific prevalence found
The most common feline cancer, treated with chemotherapy. No Maine Coon-specific figure was found. 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 cat's build - size, skull, skin
- Genetic risk = the gene is proven, the odds are not
- All cats = an average for all cats, 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 Maine Coons?
How much does pet insurance cost for a Maine Coon?
Is pet insurance worth it for a Maine Coon?
What is the average yearly vet cost for a Maine Coon?
What pre-existing conditions affect Maine Coon insurance coverage?
Does pet insurance cover hypertrophic cardiomyopathy in Maine Coons?
How much does hip dysplasia treatment cost for a Maine Coon?
Why does my Maine Coon insurance premium keep going up every year?
Can I switch pet insurance if my Maine Coon has a diagnosed condition?
What does pet insurance not cover for Maine Coons?
Should I get pet insurance or self-insure my Maine Coon?
What questions should I ask before insuring my Maine Coon?
Similar cats
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 Meurs KM, et al. (2005) - A cardiac myosin binding protein C mutation in the Maine Coon cat with familial hypertrophic cardiomyopathy. Human Molecular Genetics 14(23):3587-3593.
- 2 Mary J, et al. (2010) - Prevalence of the MYBPC3-A31P mutation in a large European feline population and association with HCM in the Maine Coon breed. J Vet Cardiol 12(3):155-161.
- 3 Payne JR, et al. (2015) - Cardiomyopathy prevalence in 780 apparently healthy cats (the CatScan study). J Vet Cardiol 17(Suppl 1):S244-S257 - all-cats HCM baseline.
- 4 Loder RT, Todhunter RJ (2018) - Demographics of hip dysplasia in the Maine Coon cat. J Feline Med Surg.
- 5 Conroy M, et al. (2019) - Chronic kidney disease in cats attending primary care practice in the UK. Veterinary Record 184(17):526.