Sprained ankle can not judge by themselves whether there is no injury to the bone, should be timely hospital consultation, specialists can be based on clinical symptoms, physical examination, auxiliary examination and other aspects of a comprehensive judgment to determine whether there is a fracture. Ankle sprain often manifests as severe pain and swelling of the ankle joint, subcutaneous bruising, limited joint movement, etc. Mild fracture is usually the same as soft tissue injury, no special performance, only when the fracture is severely displaced will show joint deformity or bone rubbing sound, so usually through the clinical symptoms can not be completely determine whether it is a soft tissue injury or a fracture. To determine whether a fracture exists, X-ray examination is usually preferred, which can clarify whether there is a fracture in the ankle joint, as well as the type of fracture and displacement. X-rays and clinical symptoms, combined with medical history, can clarify whether there is a fracture of the ankle joint. Therefore, after breaking the ankle, it is recommended that the patient consult a doctor for a complete examination to determine whether there is a fracture, and then carry out targeted treatment under the guidance of the doctor.