The reason why walking still hurts after four months of ankle fracture may be due to contracture of muscles and ligaments or traumatic arthritis. 1. Contracture of muscles and ligaments: Ankle fracture is a kind of stable fracture, which needs to be fixed and braked with plaster for about one month after fracture, and the plaster can be removed for functional exercise after recovery, and the pain of walking may be caused by contracture of muscles and ligaments due to braking, which has not returned to normal, and it is necessary to strengthen the exercise, so that the contracture of muscles and ligaments will be recovered and the pain can be improved. 2. Traumatic arthritis: because of the injury to the ankle joint damage, caused by degenerative degeneration of articular cartilage or cartilage hyperplasia, ossification, etc., walking activities can appear when the pain phenomenon. Ankle fracture four months walking pain may also have other reasons, should be timely to the regular hospital, the doctor according to the specific condition to determine the cause of the disease, for the cause of the treatment given in a timely manner.