A breath is a noise that is heard during the heartbeat, and which recalls the noise a fluid makes when subjected to turbulence. Usually no blows are heard, but in some circumstances, there is turbulence in the blood when circulating through the heart or the arteries that are heard as "blows".
Having a breath does not mean having a disease; Most of the murmurs occur in normal hearts, although some may be due to heart disease.
How to detect a heart murmur
Blows are detected by listening, listening to the heart (usually with a stethoscope).
Causes of Blow in the Heart
Blood swells that produce murmurs may be normal, depending on the shape of the heart, the age of the patient, and other circumstances. When blood circulates more quickly, such as when exercising or if there is anemia, it is normal to hear blows. Sometimes the turbulence is caused by some heart disease. Most often it is due to an alteration in one of the four valves that the heart has: if one of them opens less than normal or does not close properly, a blow may occur.
When a breath is heard, the nature of the murmur and its characteristics indicate whether it may be due to illness or not. A heart ultrasound (echocardiogram) is the technique used to know the causes of a murmur.
How to treat a heart murmur
Blows do not need to be treated, what may need treatment is the heart disease that produces it, if any.
For more information consult a cardiologist .