Heart murmurs are sounds similar to the sound of the air of a torch. Heart murmurs are usually pathological, although in young children may be normal. You can listen to the heart using a stethoscope, which is placed at chest level. Heart murmurs are always indicative that there is increased blood flow to heart level, either by an alteration of a heart valve or a non-cardiac cause. It is important to take note of all the characteristics of the heart murmur, such as the intensity, timing, location, shape, radiation, quality and pitch, as they offer a lot of information regarding the pathology that causes it.