A relatively mild muscle injury can usually be recovered in one to two weeks; a slightly heavier one takes four to six weeks to recover; and the recovery time for a severe muscle injury may take three to six months. In addition, the recovery time is also related to the individual’s physical condition, treatment method and nutritional status. 1. Mild muscle injury: relatively mild muscle injuries, such as muscle strains in people who like to play sports, most of them return to normal in 1~2 weeks after standard treatments such as cold compresses within 72 hours and hot compresses after 72 hours. 2. moderate muscle injury: slightly more serious muscle contusion, may be a little slower to recover, after cold compress, hot compress, massage and other treatments, usually need about 4 ~ 6 weeks to heal. 3. Severe muscle injuries: particularly severe muscle injuries, such as muscle breaks caused by fractures, not only need to deal with the fracture, but also suture the muscle, the recovery time is relatively longer, usually takes about 3~6 months. It is recommended that patients with muscle injuries should seek medical treatment in time and choose a suitable rehabilitation method under the guidance of doctors.