What causes a heart murmur and how does it sound?

Answer 1

Some causes of heart murmurs can include a congenital defect in a heart valve, a hole in the wall of the heart, endocarditis, and many other medical conditions. Some symptoms of a heart murmur are shortness of breath, fainting, and pain in the chest area.

Answer 2

Turbulence.

What causes it? Any number of things :

valve not opening fully, rough edges on valves, constrictions of vessels or ventricles of the heart, increased blood flow (may well be normal ... or not)

Answer 3

You have four valves in your heart. Right atrio-ventricular valve, right pulmonary valve, left atrio-ventricular valve (Mitral valve.), aortic valve. All of they can become narrow because of 'steno-sis' or blood get in reverse direction called asincompetence. In addition, you may have inter atrial septal defect or inter ventricular septal defect. there may be patent duct-us arteriosus. All of them cause murmur and it is a harsh sound and once you hear it, it can be easily diagnosed. Of course, to diagnose which valve and what type of murmur is very difficult job.