Frozen shoulder is a common type of frozen shoulder, and most of the commonly referred to frozen shoulder is also known as frozen shoulder. It is also known as “fifty shoulder” because of its high incidence around the age of 50, and it is more common in middle-aged and elderly people. Etiology The exact cause of frozen shoulder is still unknown, but some believe it is an autoimmune disease, while others believe it is related to a systemic metabolic disorder. In patients with shoulder trauma, stroke, hemiplegia, and other lack of shoulder activity, frozen shoulder often occurs over time. It is a multi-bursal lesion involving the glenohumeral joint capsule, subacromial or subdeltoid muscle, and the bursa of the long head of the biceps tendon. In the early stages, the bursa becomes congested, edematous and oozing. In the later stages, the synovial cavity becomes adhesively occluded and fibrous. The initial pain affects shoulder motion, which is further limited by the development of fibrosis and scarring between the above involved tissues. Clinical manifestations are generally divided into 3 phases: acute, chronic and recovery (remission) phases. Frozen shoulder has an acute onset, with severe pain and protective spasm of the shoulder muscles, resulting in limited shoulder movement. The acute phase usually lasts 2 to 3 weeks and then enters the chronic phase. However, most patients do not have a distinct acute phase, but have a slow onset. In the chronic phase, the pain is lighter than in the acute phase, but the contracture increases and the shoulder joint becomes frozen, making it difficult to dress, comb the hair, or even wipe the hand towel after a bowel movement. Treatment In the acute stage, pain relief is the main focus. The use of non-steroidal anti-inflammatory analgesics, such as anti-inflammatory pain, Fotarine, Fenbid, etc., have a better anti-inflammatory and analgesic effect. The use of such drugs in the elderly must be careful not to use too large a dose and should not be used for a long time, so as not to damage the liver and kidney function. Muscle relaxants such as fenaral, chiropractic and clozoxazone can not only relieve muscle spasm, but also have analgesic effect, and hormones can be used for intra-articular or local pressure point closure treatment, and the affected limb can be braked by lifting with a triangular towel. After entering the chronic stage, you can do appropriate functional exercises for the shoulder to prevent the joint contracture from worsening. Take a bent position and lower the affected arm to do backward and forward, left and right swinging or circle movements, and after the range of motion improves, use both hands to climb the wall to pull the shoulder up gradually. Physiotherapy, acupuncture, massage and massage, intra-articular injection (hormone + lidocaine) line pressure expansion (glenohumeral joint) joint capsule, all have certain effect. After the pain is basically relieved, it is necessary to strengthen the functional exercise of the shoulder and actively restore the function of shoulder movement. In a few cases where shoulder movement is severely restricted, the adhesions can be released by manipulation under anesthesia, followed by functional exercise of the shoulder. Although frozen shoulder has a tendency to heal itself, it is still necessary to actively perform functional exercises during the illness, otherwise, although the shoulder is no longer painful, it will still leave the shoulder joint movement obstacle.