Fetal ventricular septal defect 4mm serious?

If the fetus is normal, the shape and function of the heart are not affected, and other tissues and organs are well developed, only the ventricular septal defect 4 mm occurs, which is generally not serious. It will gradually close itself with growth and development, and will not affect the body. If the fetus is poorly developed, the shape of the heart is abnormal, and other tissues and organs are abnormal, it is usually more serious. It may affect the normal function of the heart and adversely affect the health of the fetus.