Health Library

Heart Valve Diseases
Heart valves can malfunction on one of two ways: They can fail to close completely, allowing blood to flow backward, or they can become damaged, limiting blood flow.
Mitral Valve Prolapse
Mitral valve prolapse is a condition in which blood leaks backward through the mitral valve in the heart. This backflow of blood may result in a heart murmur.
Heart Murmurs
Heart murmurs may be caused by a number of factors or diseases, including defective heart valves, fever, and pregnancy.