How are rotator cuff injuries and subacromial impingement treated? There is no particularly effective treatment for rotator cuff injuries in Chinese medicine. The choice of Western medical treatment depends on the type of rotator cuff injury and the duration of the injury. Rotator cuff contusions, partial ruptures or complete ruptures in the acute phase are generally treated with non-surgical therapy. Treatment of rotator cuff contusion: rest, suspension with a triangular scarf, braking for 2-3 weeks, and local physical therapy to eliminate swelling and relieve pain. 1% lidocaine plus corticosteroids can be used for subacromial bursa or glenohumeral joint intracavity injection for severe pain, and functional rehabilitation of the shoulder joint can be started after pain relief. In the acute stage of rotator cuff rupture: supine position, zero-position traction of the upper limb, i.e., skin traction of the upper limb at 155° in the abduction and front supination position for 3 weeks, traction with bedside physiotherapy, after 2 weeks, intermittent release of traction 2 to 3 times a day, functional exercises of the shoulder and elbow to prevent joint stiffness, also can be changed to zero-position shoulder herringbone cast or zero-position brace fixation after 1 week of bedside traction, so as to facilitate down to the ground. Zero-position traction helps the rotator cuff tendons to repair and heal under low tension, and also helps to use the gravity of the limb to promote the rehabilitation of the glenohumeral joint after the removal of traction. Indications for surgical treatment: large rotator cuff tears, rotator cuff tears for which non-surgical treatment is ineffective, and cases with a combination of subacromial impingement factors, large rotator cuff tears generally do not heal on their own, and the factors affecting self-healing are: after 4-6 weeks of non-surgical treatment, the acute inflammation and edema of the rotator cuff subsides, and the unhealed tendon stump forms a harder scar tissue, which is conducive to tendon repair and stopping point reconstruction. Reconstruction. In subacromial impingement syndrome, subacromial plication is feasible.