Myocardial ventricular defects have some chance of healing on their own, especially smaller ones, and have the potential for natural closure up to the age of 5 years, but most of them occur within 1 year of age. Ventricular septal defects are common congenital heart malformations in which the ventricles are supposed to be divided by the septum into two chambers that do not communicate with each other. However, the septum between the left and right ventricles does not grow properly, resulting in the left ventricle and the right ventricle being connected, and the blood flow therefore appears to be abnormally bifurcated. Myocardial ventricular defects are congenital heart malformations that should be detected early, treated early, and prevented from complications, among other things. The treatment of such diseases should be based on the guidance of doctors. Even though there is a certain cure rate, we should avoid delaying the treatment by blindly pursuing self-healing, which may cause serious impact on the affected children.