Some ventricular septal defects can heal on their own. For ventricular septal defects smaller than five millimeters, some patients can heal on their own; the defects that generally heal are those in the membranous and muscular parts of the septum, and the younger the age, the greater the likelihood of healing. If the ventricular septal defect still exists after the age of five, it generally cannot heal on its own. For ventricular septal defects that do not heal spontaneously, if they significantly affect hemodynamics, interventional treatment or surgical surgery is needed for repair. If the impact of the ventricular septal defect on hemodynamics is not significant, regular follow-up examinations can be conducted to understand the condition of the disease.