What is the difference between an innocent and abnormal heart murmur?

What is the difference between an innocent and abnormal heart murmur?

Doctors call it an innocent murmur when you have a heart murmur but don’t have signs of another underlying heart condition. An abnormal heart murmur may require tests to figure out the murmur’s underlying cause.

Usually, innocent heart murmurs don’t need treatment. Abnormal heart murmur treatment can vary based on your heart condition.