Common Causes of Heart Murmur. ❤ ✅ High Circulation ✅ Valve Obstruction ✅ Heart Hole ✅ Valve Leakage ✅ Abnormal Heart Connections It's important to note that not all heart murmurs are indicative of a serious problem. Innocent or benign murmurs, which are common in children, often don't require treatment. However, if a murmur is persistent, associated with symptoms, or detected later in life, further evaluation by a healthcare professional, typically a cardiologist, is necessary to determine the cause and appropriate management.