Is the 51-day-old baby's heart murmur serious

51 days baby heart murmur is serious and cause the cause of the murmur, need specific analysis.

Heart murmur refers to changes in cardiac hemodynamics caused by abnormal heart sounds heard during auscultation. There are many reasons for baby heart murmur, if it is due to mild regurgitation of the valve murmur, generally not serious, belong to physiological phenomenon, with the increase of age can gradually disappear. But if the atrial septal ovale patent, ventricular septal defect, atrial septal defect and other congenital heart disease caused by murmur, it has a certain severity, need to take timely treatment.