Mitral valve prolapse is a common cause of a heart murmur caused by a "leaky" heart valve. Most cases of mitral valve prolapse are not serious and only need to be monitored. Mitral valve prolapse is ...

What Is Mitral Valve Regurgitation? When your heart pumps blood, it’s supposed to follow a specific path in one direction. But sometimes, it goes the wrong way. Mitral valve regurgitation is when your ...