Ovular foramen insufficiency is a very common type of congenital heart disease. If the atrial septal defect is 4 mm, the area of the defect is still relatively large, but it is not impossible to heal spontaneously. In general, self-healing is possible from birth until 7 weeks of age. However, this is only a matter of probability, because with a defect area of 4 mm, the possibility of self-healing in this case should not reach 50%. Therefore, at this stage, it is important to review the cardiac ultrasound regularly, mainly to see the degree of closure of the foramen ovale, and then to see the structure of the heart, whether there are structural changes due to the foramen ovale not closed, if it occurs and there are symptoms of mild heart failure, it is important to do surgery as soon as possible, to do blocking surgery, minimally invasive blocking effect is very good, after blocking is the same as normal people. There is no special life, it is a normal state.