Sternal depression may be caused by funnel chest, sternal fracture and so on. 1. Funnel chest: funnel chest may be caused by heredity, imbalance of rib development and other reasons. Patients will have the manifestations of depressed sternum, deformed thorax, and other symptoms such as dyspnea and chest pain. 2. Sternum fracture: Sternum fracture is mostly considered to be caused by external force hitting the thorax, and the patient will have swelling of the sternum area, pressure and pain, and spinal injury. In addition, some patients with fracture of the sternum will be manifested as depression of the sternum. It is recommended that patients with sternal depression need to seek timely medical treatment, and the doctor will choose appropriate measures for the cause of the disease. If it is caused by funnel chest, patients need to take negative pressure suction cup, sternum magnet attraction and other ways of treatment. In addition, the patient can also take the sternum flip surgery, sternum lift surgery, minimally invasive funnel chest correction and other ways of treatment. Surgery is recommended if the depression is caused by a sternal fracture.