The common reasons for walking with a limp after five months of talus fracture include muscle atrophy of the affected limb due to prolonged immobilization, joint adhesion, poor fracture healing and psychological effect, etc. It is necessary to complete the examination to clarify the causes. 1. Muscle atrophy: after talus fracture, according to the severity and type of fracture, it is necessary to give a long time of external fixation or internal fixation treatment, the affected limb lack of activities for a long time, there will be a wasteful atrophy of the muscles of the affected limb, the limb is thinner than the healthy side, and there is a sense of powerlessness, so when walking, you can show a limp. 2. Joint adhesion: also because of long time fixation, it will lead to adhesion of soft tissues around the ankle joint, which can limit the activity of the ankle joint, so it will be limp, and there will be pain when moving. 3. Poor fracture healing: five months after the fracture, a small number of patients may have poor fracture healing, walking pain in the affected limb, X-ray review can confirm the diagnosis. 4. Psychological factors: after the fracture, because of the role of psychology, when walking for fear of the affected limb is injured again, so the affected limb does not dare to exert force, manifested as a limp symptoms. Specifically recommended to go to the hospital, improve the auxiliary examination, clear cause, if necessary, by a professional physician for treatment.