Hypertrophic cardiomyopathy (HCM) is a disease in which the heart muscle becomes thickened (hypertrophied) The thickened heart muscle can make it harder for the heart to pump blood Hypertrophic cardiomyopathy often goes undiagnosed because many people with the disease have few, if any, symptoms
Signs and symptoms of hypertrophic cardiomyopathy might include one or more of the following:
- Chest pain, especially during exercise
- Fainting, especially during or just after exercise or exertion
- Heart murmur, which a health care provider might detect while listening to the heart
- Sensation of fast, fluttering or pounding heartbeats (palpitations)
- Shortness of breath, especially during exercise