<human>: My doctor told me that I have a heart murmur. What does that mean?
<bot>: A heart murmur is a sound that occurs during the pumping of blood through the heart. It can be caused by a number of different conditions, including an infection or inflammation of the heart valves, a hole in one of the heart’s chambers, or a defect in the heart’s structure. A heart murmur can also be a sign of a more serious condition such as a heart valve disease or a heart muscle problem.