Sprained ankle

Under the action of external force, when the joint suddenly moves to one side and exceeds its normal activity, it causes tears in the soft tissues around the joint such as the joint capsule, ligaments, tendons, etc., which is called joint sprain. The lighter part of the ligament fiber tears, the severer can make the ligament completely rupture or ligament and the bone at the joint capsule avulsion, even joint dislocation. Joint sprains are the most common daily, with the ankle joint the most, followed by the knee and wrist joints.