Can a heart defect of 4mm heal itself?

Heart defect 4mm

is a kind of congenital heart disease, including ventricular septal defect and atrial septal defect. If it is a newborn or a child less than 1 year old, because 4mm is a relatively small defect, with the child's body development, usually can naturally close, generally can self-heal. However, if the age is older, has been more than 1 year old, because the child's heart basic development is perfect, usually will not gradually close through acquired growth, generally can not self-heal, may need surgery.