The degree of recovery from ankle sprains varies according to the degree of muscle atrophy and different methods of rehabilitation exercises. Mild muscle atrophy can be restored to normal after standardized rehabilitation exercises. If the muscle atrophy is obvious and there is no standardized rehabilitation exercise, the recovery is worse. Muscle atrophy occurs when the ankle joint is immobilized for a long period of time during treatment, limb activities are reduced, and there is no standardized rehabilitation exercise. Mild muscle atrophy within the safe range as far as possible to increase the exercise for muscle strength, reasonable diet, delay muscle atrophy, most of them can be restored to the normal state. If the muscle atrophy is serious, without timely rehabilitation exercise or less exercise, may not be able to return to normal state, it is recommended that the ankle sprain under the guidance of the doctor for standardized treatment, rehabilitation training, to avoid muscle atrophy.