The oval foramen ovale is not closed in the newborn heart and is a normal physiological phenomenon. Because the foramen ovale is the embryonic physiological channel of the atrial septum of the heart, it usually begins to fuse around 5-7 months after birth, so until then it is a normal physiological phenomenon and not a cause for concern. However, as the baby grows older, if it still does not close after the age of 1 year, surgical treatment can be done for patients with symptoms, and if there are no symptoms, regular review can be done. In adults, it is difficult to hear murmurs, and many patients have no cardiac symptoms, but they may have complications such as syncope, temporary aphasia, or stroke.