Ankle sprain is an injury to the soft tissues around the joint such as the joint capsule, ligaments and tendons when the ankle joint suddenly moves to one side and exceeds its normal mobility, which may cause fracture or dislocation in severe cases. The symptoms are subcutaneous bruising, swelling, pain and limited movement in the area of the joint. Ankle sprains are very common and most often overlooked by doctors and patients. It is often thought that “if you can walk, the bone is fine”, “if there is no fracture after the film, it is fine”, “the swelling will be fine after a few days, and the swelling will go down”. In fact, these are all very wrong views. The first sprain of the ankle must be properly treated, such as ice, stopping bleeding, reducing swelling, activating blood circulation and braking with elastic bandages or plaster casts. Since it is difficult to apply absolute braking after a sprain, it is not recommended to apply heat or compression for 24 hours or 48 hours, unless the local inflammatory exudate has completely stopped after medical consultation. This can lead to the formation of ankle osteoarthritis. This is the key reason why many patients often say, “I have an old injury, and now it’s coming out, and it won’t get better for a lot of time. In addition, ankle sprains that result in severe ligament tears or even complete ruptures must be treated with timely surgery, even if there are no combined fractures or dislocations. The ankle joint is one of the most important weight-bearing joints in the human body. For the sake of your happy life and to avoid regrets after many years, please come to a regular hospital for timely and effective diagnosis and treatment after ankle sprain and contusion.