After surgical treatment of patients with congenital heart disease, bulging of the incisional segment occurs in many children, and is more common in infants and children with pulmonary hypertension. This occurs mainly because the surgical procedure disrupts the continuity of the thoracic department, and because most children with congenital heart disease have an enlarged heart and significant sternal augmentation occurs after surgery. For infants and young children. Since the sternum has not been completely ossified, after open-heart surgery due to the tension of the sutures closing the sternum. It will cause the sternum to bulge to varying degrees, which is common in postoperative patients, and the baby’s family need not worry too much. Consider using a chicken rib control device under the guidance of a doctor to flatten and fix the sternum to make it grow flat and beautiful. Most children will gradually regain relief as their bodies and thorax develop, their heart size returns to normal, their thorax thickens, and their sternum bulges. By the adolescent stage, the growth and development of the anterior thoracic region is basically close to that of the same age. In general, the sternal augmentation will gradually return to normal with growth and development, but if it remains like this for a long time after surgery, you should follow up with the clinic in a timely manner.