I. General objectives: 1. This phase is the healing phase. The repair initially begins with sutures and rivets attached to the bone. 2. The strength of the tendon repair can reach 20% of normal at 4 weeks postoperatively. Therefore, active movement of the upper extremity is prohibited for 6 weeks after surgery, as it may pull on the repaired tissue and disrupt the tendon’s attachment growth. 3. Protect the repaired tendon and maintain joint mobility and prevent scar adhesions. 4. Reduce inflammation and pain. 5.Use triangular belt or pillow to make the upper limb abducted to release the tension of the repaired tendon. 2. Activities to be avoided: 1. Active joint movement, although only slight or no pain. 2. Supporting the hand when standing up from a sitting or lying position. 3. Passive joint activity or stretching with aggravated pain, which causes muscle spasm or tension. 3. What should be done: 1. The daily activities of home or work can be completed in a suspended situation. 2.Ice the shoulder 3-4 times/day for 20 minutes each time, you can use cold therapy cuff or ice pack. 3. Your surgeon may recommend physical therapy for up to 6 weeks after surgery. The time to start depends on the extent of your rotator cuff tear, the quality of the residual tissue and the presence of combined damage to other structural tissues. 4. Your therapist will supervise a series of activities to strengthen the shoulder joint, scapular girdle, elbow, wrist and hand. 5.Pillows under the elbow in the horizontal position keep the upper limb in a slightly anterior flexion position, and it helps to reduce the pain, posterior extension is contraindicated. 6. Only remove the triceps or braking equipment when exercising or bathing. Braking needs to be maintained for 4 weeks, and then gradually removed from the 4th to the 6th week. This is generally the case, and the time will vary for each specific patient. This is related to the extent of the patient’s injury, the integrity of the tissue and the surgeon’s decision making. 7.Active activity at the lumbar level can be started by the end of week 6. 8, You can sit on a stationary power bike for aerobic exercise instead of running training. Note: The division of stages cannot be strictly based on the length of time. The following conditions need to be achieved before progressing from stage 1 to stage 2 1. appropriate degree of repair of the surgical site 2. good braking and high compliance with precautions 3. acquisition of adequate joint mobility, both angular and mass. In general, 120-140 degrees of passive forward flexion and 30-60 degrees of passive external rotation should be achieved 4. Effective control of inflammation and pain