The time needed to recover from muscle atrophy after fracture varies from person to person, usually the recovery time is around 1~2 months. Muscle atrophy after fracture usually belongs to the wasting muscle atrophy, generally due to the fracture of the muscle long-term non-exercise caused by the fracture, so the patient is recommended to start as soon as possible after the fracture is healed rehabilitation training, to help atrophy muscle recovery, for the body of the better patients generally one month can be recovered, and the body of the poorer patients need about two months. Early muscle atrophy can be alleviated through passive exercises, such as local muscle massage, activities in addition to the fracture site of other neighboring joints, to relieve muscle atrophy. Fracture 2~3 weeks after the pain relief, you can carry out active exercise, such as upper extremity shoulder joint fracture, you can carry out some wrist and elbow joint flexion and extension to exercise. Lower extremity fracture of the backbone, you can carry out some knee and ankle flexion and extension movements, so as to relieve muscle atrophy. Exercise should be carried out under the guidance of the doctor, pay attention to the intensity and duration of exercise, etc., and recover through appropriate exercise.