Adults can opt for a sternotomy to correct funnel chest. Funnel chest refers to a deformity in which the middle and lower portions of the human sternum are sunken backward, with the chest wall appearing funnel-shaped. Patients with funnel chest have no obvious symptoms in infancy or childhood; if the deformity is severe, there can be compression of the heart and lungs, limitation of mobility, and susceptibility to lung infections. Adult patients with funnel chest can choose sternotomy for treatment. Sternotomy is to place the sternal stent behind the sternum through the lateral chest wall on both sides, and flip the sternum, then adjust the sternum and chest wall to the ideal shape, then fix the stent, and then remove the stent after two years, which is simple, less traumatic, and with remarkable effect, and has been widely used. If you find a sternal deformity, please seek medical treatment as soon as possible.