Cat Breed Health Risks & Genetic Disease Guide — From Scottish Fold to Maine Coon
Veterinary guide to genetic diseases and health risks in popular cat breeds including Scottish Fold, Maine Coon, Persian, and Bengal — essential reading before choosing a purebred cat.

Key Takeaways
Veterinary guide to genetic diseases and health risks in popular cat breeds including Scottish Fold, Maine Coon, Persian, and Bengal — essential reading before choosing a purebred cat.
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Cat Breed Health Risks and Genetic Disease Guide | From Scottish Folds to Maine Coons
When bringing a cat into your home, understanding not only their appearance and personality but also the health risks inherent to their breed beforehand is an important preparation for a long and healthy life together. As purebred cats are selectively bred, certain genetic traits become fixed while the risk of specific diseases can increase. This article explains health risks and genetic diseases by popular cat breed from a veterinary perspective.
Scottish Fold | Osteochondrodysplasia (OCD) Risk
Scottish Folds are characterized by their distinctive folded ears and cute, rounded appearance. However, the genetic mutation (Fd gene) that creates this folded ear trait affects not just the ears but also cartilage and bone formation throughout the entire body.
What is Osteochondrodysplasia?
Individuals homozygous (FF) for the Fd gene almost certainly develop the condition, while heterozygotes (Fd) also have a high incidence. Symptoms manifest as joint and bone deformities, most commonly affecting the ankle, knee, and tail joints, with signs such as "doesn't squat," "avoids jumping," and "tail becomes stiff."
Care Checklist - Regularly check for joint swelling or stiffness - Avoid folded-ear × folded-ear breeding (higher risk) - Regular monitoring is necessary even for Scottish Shorthairs with normal ears - Many cats hide pain, so pay attention to behavioral changes
It is worth noting that several countries including the UK, Netherlands, and Belgium have moved to ban the breeding of Scottish Folds. Taking this fact into account, health status must be prioritized in decision-making.
Maine Coon | Hypertrophic Cardiomyopathy (HCM)
The Maine Coon is one of the largest cat breeds with a gentle temperament, earning them the nickname "dog-like cat." However, they are known to have a particularly high incidence of hypertrophic cardiomyopathy (HCM), requiring careful attention.
Characteristics of Hypertrophic Cardiomyopathy
HCM is a condition where the heart muscle becomes enlarged, impairing normal heart function. As it progresses, it can lead to heart failure, thrombosis, and sudden death. In Maine Coons, the condition is attributed to mutations in the MYBPC3 gene, and genetic testing can determine the risk of developing the disease.




