The difference in height between the two sides of the sternum may be due to problems such as simple malformation of rib development, rickets, or costochondritis. It can be corrected by medication and surgery. 1. Simple rib deformity: generally common in infants and young children, usually due to the lack of vitamin D or calcium when growing up, resulting in congenital dysplasia, serious cases need to be corrected under the guidance of the doctor’s surgical treatment. 2. Rickets: generally seen in children, metabolic bone disease caused by growth plate cartilage and osteoid mineralization disorders, vitamin D deficiency and vitamin D metabolism is abnormal or abnormal role is an important cause of the disease, under the guidance of the doctor daily oral vitamin D, calcium and other medications, but also can be corrected by surgery. 3. Costal chondritis: generally due to non-infectious factors of unknown etiology caused by inflammatory diseases of the rib cartilage, prevalent in the less active, sedentary young adults, manifested in the side of the rib cage swelling and pain, in the doctor’s advice can be used, such as ibuprofen, celecoxib, rofecoxib and other treatments. The two sides of the sternum are not the same height in the daily work need to combine work and rest, avoid the same posture for a long time, try to change the weight-bearing parts of the body, pay attention to the chest to keep warm.