If your child has a ventricular septal defect, the first thing you need to know is whether the disease can heal on its own and whether there is any possibility of self-healing, and then you can judge how long it will take to heal on its own. First of all, it depends on the size of the ventricular septal defect, if the child has a small ventricular septal defect, 2-3mm, located in the membrane or at the base, it usually has no effect on the child’s growth and development, and the child eats well, plays well, and has normal growth and development, this case has the possibility of spontaneous healing, and it may take 1-2 years to heal itself. If the ventricular defect is large, more than 1/2 the diameter of the aorta, this condition is usually difficult to heal on its own, and time is usually not an issue. In addition, there is its location, such as subvalvular ventricular defects, as well as subaortic, subpulmonary, or bicuspid arterial ventricular defects, which usually do not heal on their own regardless of their size, and need to be treated surgically. Therefore, it is not possible to give a generalized answer, but it is necessary to evaluate whether and how long the defect will heal on its own, depending on the location of the defect and the size of the defect in the child.