Innocent heart murmurs are harmless sounds made by the blood circulating normally through the heart's chambers and valves or through blood vessels near the heart. They can be common during infancy and childhood and often disappear by adulthood. They're sometimes known as "functional" or "physiologic" murmurs.

How often are heart murmurs innocent?

Less than 1% of pediatric heart murmurs are associated with congenital heart disease, and most of the heart murmurs are innocent in nature [3].

Can innocent heart murmur cause problems?

They come in two varieties: innocent and abnormal. An innocent heart murmur does not cause problems with the heart's function. It could be related to a condition, often temporary, causing high blood flow through the heart's valves explains...