Cockscomb is divided into congenital and acquired, and the latter is mostly due to nutritional disorders, mostly seen in early childhood, and is a manifestation of rickets. Premature surgery of chicken chest has the possibility of recurrence due to the soft bone, and the acquired chicken chest occasionally has the ability to correct itself during the development. Therefore, for children with rickets under 3 years old, anti-rickets treatment should be actively given, including dietary therapy, vitamin D therapy, and if necessary, calcium supplementation. For children after the age of 3, most of them have rickets sequelae, and the treatment with calcium and vitamin D is not effective, so the purpose of correcting the deformity can be achieved by using special brace to compress the raised chest and maintain it for a certain period of time. In adolescence, the brace often fails to achieve the orthopedic purpose because of the gradual hardening of the bone. In addition, older patients often have low self-esteem and lack of self-confidence, which affects their psychological health, and they are reluctant to swim and participate in outdoor activities because of their hunchback when walking and sitting. The abnormal posture and lack of exercise will aggravate the deformity. Therefore, surgical treatment is available for patients of older age and for those with cardiopulmonary effects. Minimally invasive surgery The boneless resection correction for pediatric funnel chest was first introduced by Nuss in 1998. Besides the advantages of small and concealed incision, short operation time, less bleeding, quick recovery, no free chest wall muscle flap, no rib cartilage or sternal bone resection, the Nuss procedure is most prominent for its ability to maintain chest extension, expansion, flexibility and elasticity over time. Since the Nuss procedure is a minimally invasive and easy-to-grasp technique, it has been rapidly accepted by surgeons from all over the world and has now become the standard and preferred procedure for the treatment of funnel chest. The minimally invasive sternal sinker, which is based on the principles of the Nuss procedure, has almost no possibility of damaging the thoracic organs and large blood vessels because the fixation frame is under the skin and the fixator is fixed to the rib cage. Freeing the periosteum of the ribs first and threading the wire under the periosteum also effectively avoids the possibility of damaging the intercostal vessels. The recent postoperative results are excellent, and one scholar, Abramson, reported an excellent rate of 90% after removal of the fixation frame, which proves that this procedure is feasible. In addition, more importantly, the lowering of the thoracic ribs extends the lowered rib portion to both sides, increasing the volume of the thoracic cavity. It also has the advantages of no large median incision, no freeing of bilateral muscles, and no amputation of the sternum and rib cartilage. Therefore, for the treatment of pediatric pectus excavatum, those aged 3 to 10 years can be treated with braces, and those aged 10 years or older can be treated surgically. adolescents aged 10 to 16 years have good elasticity of the chest and ribs, which require less pressure, easy surgical operation, better tolerance to surgery, postoperative recovery and better results than late adolescents and adults. In addition, minimally invasive sternal subsidence surgery is simple and less traumatic, so those whose brace treatment is ineffective should consider surgical correction.