Adhesive capsulitis of the shoulder, or frozen shoulder, is the most common form of shoulder disease. It accounts for about 1/2 to 1/3 of all outpatient visits for shoulder disorders; frozen shoulder is a good description of the disease: the gradual loss of shoulder mobility as if the shoulder joint were frozen. Many patients with frozen shoulder often suffer from severe pain and limited motion and live in worry and fear. I will discuss the characteristics of frozen shoulder, self-diagnosis and modern treatments based on my own experience and the results of literature studies, to help patients better understand the disease and choose the appropriate treatment. Age of onset: Around 45-55 is the age of onset of frozen shoulder, and both men and women can have the disease. Typical symptoms of frozen shoulder or frozen shoulder: 1. Pain: Severe pain is a distinctive feature of frozen shoulder or frozen shoulder. Pain is often more pronounced at night and affects sleep; passive pulling on the joint during the acute phase can induce severe pain, for example, someone pulling on your hand can cause severe pain in the shoulder joint. 2. Restricted movement: Active and passive activities in all directions are severely restricted, which is another characteristic of frozen shoulder and frozen shoulder. It starts with difficulty in taking off clothes, combing hair, and in severe cases, going to the toilet is affected. How to check yourself easily The most obvious limitation of external rotation of the shoulder joint; as shown in the picture clamping both arms hand and forearm rotate outward, if one side is significantly limited then the possibility of frozen shoulder is high, you need to see a specialized shoulder surgeon for consultation. Treatment: Frozen shoulder often has a long course, averaging 2 years, so treatment requires patience and not too much worry or fear. There are many treatment options for frozen shoulder, and your physician will treat your condition according to its stages; the early stage is based on medication to control the pain. In the later stages, the pain will be significantly relieved but the activity is greatly restricted. At this time, physical therapy exercises can be used to loosen the pain, and in severe cases, patients can be loosened under anesthesia and arthroscopy. 1.Physiotherapy: physical therapy, exercise to loosen adhesions. 2.Medication: NSAID drugs are often ineffective; hormones may be the only effective drugs. Nocturnal pain can be treated with stronger analgesic drugs. 3.Relaxation under anesthesia: immediate improvement in mobility can be obtained, but the release process has the risk of fracture. 4.Arthroscopic release: For patients whose adhesions seriously affect their life, or those with bilateral onset, minimally invasive release by arthroscopy can obtain very satisfactory improvement of mobility. The inflammatory synovial membrane in the joint is removed through two small 4 mm holes, and the joint capsule is completely released, which can obtain long-term results.