A heart murmur is an extra sound that can occur between heartbeats as blood moves through the heart. In babies, it is usually not a cause for concern. Sometimes, however, it can indicate an underlying ...

Lubb-dupp. Lubb-dupp. Those are the words that health care professionals often use to mimic the sound of your heartbeat. That steady, regular sound is made by your heart valves opening and closing as ...

S1 is the first heart sound that doctors can hear using a stethoscope. The vibrations that occur when the mitral and tricuspid valves in the heart close produce the S1 sound. There are two common ...