Twenty-five days after the fracture of the external ankle x-ray film reports that the fracture is blurred, indicating that the fracture has been scab formation, the fracture is in the healing period, but not completely healed, the cast can not be removed for the time being, the cast can be removed only after the fracture line completely disappeared. Depending on the condition of the fracture and the age of the fracture, the time needed for recovery is also different. The younger the fracture and the younger the age, the shorter the recovery time. When the x-ray reports a blurred fracture, it means that the fracture is healing and if the cast is removed 25 days after the fracture, the recovery time is too short and can easily result in a second fracture. When the x-ray film shows that the fracture line disappears completely, it indicates that the fracture is completely healed, and only after that can you carry out functional exercises, such as flexion and extension functional exercises, which need to be carried out under the guidance of the doctor accordingly. After removing the plaster, wear a brace or crutches to reduce weight bearing, do not strenuous activities to avoid secondary fracture. It is recommended to be judged by a professional doctor according to the examination results.