Frozen shoulder is the earliest known shoulder disorder. It has many aliases, such as frozen shoulder, frozen shoulder, shoulder coagulation, adhesive capsulitis, etc. It is also known as “fifty shoulder” because it mostly develops in middle-aged people around 50 years old. It has two main characteristics, one is pain and the other is limitation of joint movement. The essence is that the soft tissues around the shoulder joint, such as the joint capsule and tendons, become aseptically inflamed, resulting in adhesions and contractures of the joint capsule, which is like wearing a too-tight dress, resulting in a restricted range of motion, while pulling on the inflamed and swollen soft tissues during activity, causing severe pain. First of all, it should be clear that true frozen shoulder is a self-limiting disease, that is, a disease that heals on its own, even without treatment, after a certain course of the disease, the joint pain is gradually relieved and the range of motion is gradually restored. If this is the case, does it mean that frozen shoulder does not need treatment? The answer is obviously no. First of all, although frozen shoulder is a self-limiting disease, the natural course of the disease is long, ranging from six months to several years without intervention, so it is necessary to minimize its course through treatment. Secondly, the pain and limited joint movement caused by frozen shoulder seriously affects the function of the joints and the quality of life of the patient, plus the onset of the disease is mostly in middle-aged people around 50 years old, who are the pillars in their families and units. Frozen shoulder treatment includes the following: 1. Oral anti-inflammatory and pain-relieving drugs to reduce joint pain; 2. Intra-articular local seal treatment, which can directly inject anti-inflammatory and pain-relieving drugs into the onset site, can relieve pain and shorten the course of the disease, as long as it is properly applied, the effect of local seal is good and the adverse reactions are small, so there is no need to be too afraid; 3. Under the premise of good analgesia, active stretching training of the shoulder joint is actively carried out, and patients can Patients can increase the range of motion of the joint by climbing the wall, pulling the hoop and other joint activities, which is an important method of conservative treatment for frozen shoulder; 4. The vast majority of patients can obtain a good prognosis through medication and functional exercise, but in some cases of stubborn frozen shoulder with severe joint adhesions and pain, or with a prolonged course of disease that has a huge impact on the patient’s life and work, minimally invasive arthroscopic surgery can be used to achieve rapid relief of symptoms and restore daily life and work ability as soon as possible. Arthroscopy is the first choice for refractory frozen shoulder because of its advantages such as less trauma, faster recovery, and accurate positioning of release. Of course, it is also common to misdiagnose other shoulder diseases as frozen shoulder. Shoulder surgeons have compared frozen shoulder to the “garbage can” of shoulder pain diagnosis, and many patients and even doctors have hastily called the pain around the shoulder joint frozen shoulder. Therefore, before we talk about treatment, we need to find a professional shoulder surgeon to make a clear diagnosis, just like when you go out on a trip, the longer you walk in the wrong direction, the farther you are from your destination.