The common clinical causes of chest bone protrusion are mainly the following: a. Patients with congenital malnutrition and developmental malformations can cause a protrusion of the chest bone due to chicken chest and funnel chest. If the protrusion of the chest bone is not particularly serious and does not affect the normal physiological function, it may not need to be treated temporarily. If the patient’s chest bone protrusion is obvious and affects normal life, surgery can be considered to relieve the symptoms of chest bone protrusion; Second, the patient is injured by accidental fall during strenuous exercise, causing fracture of the chest and causing local bone protrusion. Patients will have difficulty in breathing, limited activity and local pain. The nature of the lesion can be clarified by CT or X-ray examination and then surgery can be performed as soon as possible to remove the bleeding from the trauma. After surgery, anti-infection, analgesia and edema can be strengthened to relieve the symptoms of protruding bones in the chest.