One of the more common reasons that young patients come to see us is heart murmurs. A murmur is an extra sound produced by the heart or blood vessels that is heard on auscultation of the heart with a stethoscope. When doctors listen to a patient’s heart, only 2 sounds should be heard. These are the “lub, dub” sounds that are typically described. Extra sounds, or murmurs, outside of these sounds are typically not heard. Although murmurs are not heard if the cardiac exam is totally normal, there are many “innocent” murmurs of childhood. An innocent murmur is one that is caused by simple, normal sound reverberations within a structurally normal heart. In other words, there is no heart disease or heart defect. Sometimes we call these hearts “musical hearts.” Kids oftentimes outgrow their heart murmurs over as they get older. Some murmurs are easily identified as innocent murmurs, while other murmurs can be difficult to sort out and could indicate a structural heart problem. Your primary care provider will determine if and when it is appropriate to see a pediatric cardiologist.