The foot is often twisted, the common reasons are the following: First, the shoes worn daily are inappropriate, uncomfortable, too big or too small, too loose or too tight, are prone to foot sprains when walking or exercising. Second, the patient’s local muscles, tendons, ligaments and joint capsule are not strong enough, that is, they cannot ensure strong joint stability, and the joints will become unstable when moving or walking a lot, resulting in easy sprains. Third, in the daily activities or sports when there is no adequate warm-up, in the movement because the tendons, ligaments, joint capsule is not suitable for the state of movement, in the time of strenuous exercise there is a corresponding sprain. Fourth, the daily walking road or daily work environment road surface is uneven, bad environment, too much debris, etc., there will be a corresponding sprain too much.