For some insight, a stethoscope listens to blood flowing through through healthy valves
in a healthy
heart and do not require treatment. However,
heart murmurs can be caused by blood flowing through a damaged or overworked heart valve.
Some common conditions can force your heart to beat faster, changing the rate and amount of blood moving through your heart and resulting in heart murmurs. There are innocent murmurs and are common in children and are quite harmless.