X-leg of children can be corrected by the following methods: first, epiphyseal plate fixation, part of the patient’s X-leg is due to the unbalanced development of the epiphysis leading to the occurrence of X-leg, then you can fix the epiphyseal plate for one side of the epiphysis, so that both sides of the epiphysis can develop in balance, it will correct X-leg; second, the method of internal fixation of osteotomy, if it is due to the thigh trunk or the calf If the X-leg is caused by the curvature of the thigh or calf, the X-leg can be corrected by osteotomy, plate fixation or intramedullary pin fixation. These are the two common methods of X-leg fixation for children.