Common causes of outward bending of the calf bone include trauma, X-shaped leg, O-shaped leg, etc. According to different causes, corrective braces and surgical treatment can be used to correct the deformity, and serious cases should go to the hospital in time. 1. Orthopedic braces: People with mild symptoms of bone deformity can correct the deformity by wearing orthopedic braces and performing muscle exercises for the lower limbs under the guidance of a professional doctor, or with manipulative massage. 2. Surgery: For those who have completely closed epiphysis or whose conservative treatment is not effective, surgical treatment such as knee replacement, internal fixation orthopedic and osteotomy orthopedic surgery can be adopted. There may be other reasons for outward bending of calf bone, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.