What causes hypertrophic cardiomyopathy (HCM)?

Cardiomyopathy 00:16 min watch Published 5 March 2026 Dr Ravi Assomull, Consultant Cardiologist

Hypertrophic cardiomyopathy is a genetic condition caused by mutations affecting the heart muscle. Dr Ravi Assomull explains how these inherited gene changes lead to abnormal thickening of the heart muscle.

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Transcript

Hypertrophic cardiomyopathy is a genetic condition, so there's no lifestyle factor that causes it. It's inherited by defective genes that result in abnormal thickening of the heart muscle.

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