Funnel chest is the most common chest wall deformity, which is characterized by a funnel-shaped depression of the lower part of the sternum along with the rib cartilage on both sides. The child usually also shows the posture of shoulder shrugging, backward bowing and abdominal bulging. The danger of the disease lies not only in the psychological stress caused by the abnormal appearance of the child, but also in the reduction of the volume of the chest cavity and the pressure on the heart and lungs due to the depression of the sternum, which leads to impairment of cardiopulmonary function in the long term. There are various treatment options for funnel chest, and the typical traditional surgeries are: sternal reversal and sternal rib osteotomy. Both surgeries can correct the sternal depression, but many children and parents have difficulty accepting them because of the large trauma to the child (sternum and ribs have to be cut) and the lack of aesthetic wound (long incision in the middle of the chest). A more common surgical procedure is thoracoscopic plate placement for sternal lift (i.e., NUSS surgery, also known as minimally invasive funnel chest orthopedics). In this procedure, a shaped steel plate is passed through the back of the sternum through the intercostal space on one side and then through the intercostal space on the other side under the thoracoscope, and the plate is flipped to lift the sternum to correct the deformity. The advantages of this surgery are: 1.Small trauma, no need to break the sternum and ribs. 2.Aesthetic wound: only 3-4cm incisions are made on each side of the chest, and the scar is not obvious after healing. 3.Fast recovery after surgery: traditional surgery requires 2 weeks of lying down after surgery, but you can get up and move around on the first day after this surgery. Nowadays, more and more parents are asking for this procedure for their children. For children with mild funnel chest, regular exercise and follow-up are recommended, rather than blind surgery. Some children can avoid the pain of surgery with exercise. The timing of surgery is generally recommended after 6 years of age, but if the child has severe sternal depression, frequent colds, and abnormal ECG or echocardiogram, it can be appropriately advanced, but not earlier than 3 years of age. When the age is too young, the child’s bones are soft and the orthopedic effect is obvious at the time of surgery, but the long-term effect is slightly worse. Regarding the choice of orthopedic plates for surgery: previously, there were only imported orthopedic plates, which were more expensive (about 20,000 yuan for one set) and limited the use of some children; now domestic orthopedic plates are available (about 10,000 yuan for one set), providing parents with more choices.