human
I've been diagnosed with a heart murmur. What does this mean?
assistant
A heart murmur is a sound that can be heard when the heart muscle contracts and relaxes. It is caused by an extra blood flow in or around the heart. This extra blood flow may be due to a problem with the heart valves, such as a leaking valve, or it could be caused by an infection of the heart itself. The doctor will need to do further tests to determine what is causing your heart murmur.