Patients with rotator cuff injuries, whether treated surgically or non-surgically, should undergo scientific rehabilitation training under the guidance of a professional rehabilitation therapist. The joint needs to be braked for 4 weeks after the injury within 6 weeks, which will lead to contracture of the upper limb muscles. Therefore, during this time, you can help the affected forearm on the healthy side by making small swings or circles back and forth. You should also take the initiative to perform exercises on the upper extremity joints other than the shoulder joint. Next, you can apply cold compresses to the injured area to help eliminate soft tissue swelling, and finally remove the stitches for the remaining 2 weeks and later perform deltoid contraction exercises to restore the normal function of the shoulder joint. In the next is 7-12 weeks, the bandage is removed and functional training of the shoulder joint is performed, isometric contraction exercises of the muscles are performed, and good habits are also maintained and daily life exercises are performed. After 12 weeks of the last stage of injury, when the rotator cuff is basically healed, you can do strength training according to your own ability to bear, except for strenuous exercise.