There are no special methods or medications for the self-healing of pediatric atrial septum. If the child is less than two weeks old and has a small septal defect, it is possible for the child to heal himself, in fact, it depends on the child to grow and close on his own, there is no special medicine. However, there are some small problems that need to be noted, for example, children with atrial septal defects are prone to colds and colds can easily turn into pneumonia if they are not treated in time, which can cause damage to the child’s body. Therefore, if a child is diagnosed with atrial septal defect by cardiac ultrasound, it is important to make sure that the child avoids getting cold and flu, add and remove clothes according to the weather to avoid catching a cold, and seek medical attention promptly after catching a cold. In addition, it is important to review the heart ultrasound regularly, usually once every 3-6 months.