Usually only the smaller ventricular septal defect will have the possibility of self-healing, small ventricular septal defect will not have too obvious symptoms, patients will not appear weakness, panic attacks and other symptoms, so even if the phenomenon of self-healing will not have a very obvious feeling and change, only through the examination of the doctor through the auscultation did not find a heart murmur, there is the possibility of self-healing, the specific also need to carry out cardiac ultrasound examination to determine It is also necessary to perform a cardiac ultrasound to determine whether or not the heart has healed, because some patients may not hear a heart murmur, but their condition is more severe, probably because they have very severe pulmonary hypertension. Eisenmenger’s syndrome can also occur when the right ventricular pressure is equal to the left ventricular pressure, but no murmur can be heard, which is a manifestation of congenital heart disease at the end of the disease.