Hypertrophic cardiomyopathy (hcm) is a disease in which the heart muscle (myocardium) becomes abnormally thick (hypertrophied). The thickened heart muscle can make it harder for the heart to pump blood.
- Pain areas: in the chest
- Whole body: dizziness, fatigue, or inability to exercise
- Heart: enlarged heart, murmur, or palpitations
- Also common: shortness of breath
Hypertrophic cardiomyopathy usually is inherited. It's caused by a change in some of the genes in heart muscle proteins. Hcm also can develop over time because of high blood pressure or aging. Diseases such as diabetes or thyroid disease can cause hypertrophic cardiomyopathy.