My doctors said i may be at risk for a heart murmur. how would you tell if you had a heart murmur or not beforehand?

Heart Murmur: Not all heart murmurs are associated with significant heart disease. If a heart murmur was heard in physical exam, get an echocardiogram to rule out valvular abnormality.

A sound: lots of confusion about what a murmur is. It's simple: a murmur is an abnormal noise coming from the heart as heard with a stethoscope. A murmur can be innocent, meaning an abnormality that is of little consequence: or else it can portend an issue that needs further work up. If your physician hears a murmur ask if it bears working up further.

Stethoscope: A heart murmur is a sound your doctor hears with s stethoscope during your physical exam. You either have one, or you don't. Many heart murmurs are harmless, just the normal sound of heart flowing through your heart. Some may indicate pathology, such as a narrowed or leaking valve. An echocardiogram is a good way to tell the significance of a cardiac murmur.