After a broken ankle, there will be localized pain, swelling and limited movement. Immediately after an ankle injury, a hospital visit should be made to take an x-ray of the ankle joint to see if there is an ankle fracture. If there is an ankle fracture, it depends on the exact location of the fracture. If the fracture is not significantly displaced, a simple linear fracture can be treated with conservative external fixation in a cast. If the fracture is more significantly displaced, surgical treatment is considered to prevent long-term complications that are complications of osteoarthritis. If there is no fracture, external fixation of the ankle joint cast and braking treatment are still recommended. Three weeks of braking is needed, and the main purpose of three weeks is to let the ligaments around the ankle joint get rest, and if the surrounding ligaments do not get rest, it may lead to ligament laxity and joint instability, and lead to habitual foot fracture in the future.