Maine Coon
Gentle giant, sociable, playful
- Adult weight
- 5–9 kg
- Life expectancy
- 12–15 years
- Size
- Large
- Exercise
- Moderate
- Origin
- USA
- Group
- Longhair
Reference update: · Not veterinary-reviewedCompare weight & lifespan with the Cat Fanciers' Association breed profile ↗
What the evidence means for Maine Coon
Known HCM variants occur in Maine Coons and Ragdolls. A negative genetic test does not rule out all HCM; ask your vet whether heart imaging is appropriate.
UC Davis Veterinary Medicine – Hypertrophic cardiomyopathy ↗
Health topics to discuss with your vet
- ●Hypertrophic cardiomyopathy (MYBPC3 mutation)Breed association source: UC Davis Veterinary Medicine – Hypertrophic cardiomyopathy ↗
- ●Hip dysplasiaBreed-specific association not yet verified. General condition reference: OFA – Hip dysplasia ↗
- ●Spinal muscular atrophyBreed-specific association not yet verified.
- ●Polycystic kidney disease (occasional)Breed-specific association not yet verified.
Not a diagnosis or a complete risk list. A general condition reference explains a disease but does not establish increased risk in this breed or group. Unsourced associations still need verification.
Care tips
- ✓DNA test for HCM; echocardiogram screening
- ✓Brush several times a week
Calculators for your Maine Coon
Sources & review
Reference update 25 October 2026; not an independent veterinary review. Direct breed evidence is identified above. General directories below do not verify every listed health association.
- Official breed profile – Maine Coon ↗
- UC Davis Veterinary Medicine – Hypertrophic cardiomyopathy ↗
- OFA – Hip dysplasia ↗
- International Cat Care – Cat breeds ↗
- Cat Fanciers' Association – Breeds ↗
- UFAW – Genetic welfare problems of companion animals ↗
Weight and lifespan are typical ranges for healthy adults from breed standards and veterinary references; individuals vary. Not veterinary advice.