Shoulder pain is often simply attributed to frozen shoulder, and not only do many doctors make this diagnosis, but even many ordinary people themselves will jump to this conclusion. In fact, frozen shoulder is not a common condition and is one of the less common causes of shoulder pain. It is often found in people over 50 years old, hence the name “frozen shoulder”, and because it often causes restrictions in joint movement, it is also known as “frozen shoulder”. ”Most frozen shoulders are spontaneous with no obvious cause. A small number of cases may be caused by trauma or other causes. A true frozen shoulder is often characterized by pain in the shoulder in the early stages, and the pain is severe. The pain usually seems to subside in about 3-6 months, but the shoulder joint mobility becomes more pronounced. Patients have significant difficulty in combing their hair, bathing, personal hygiene after urinating and defecating, and fastening bras for women. There is a simple test you can do to determine if your shoulder pain is “frozen shoulder”. Hold your elbows close to your waist, bend your elbows at 90 degrees, turn your thumbs up towards the sky, and make a fist with the remaining four fingers; while keeping your elbows close to your waist and bending your elbows at 90 degrees, separate your hands to the sides and make the distance between your hands bigger. It is like doing a puller exercise, only the elbows can not move. If you cannot do this test by yourself, you can hold the above position by yourself and ask a family member to help you check whether the affected hand can be moved outward and pulled apart. If the hand on the painful side of the shoulder can move outward, most of the time it is not a “frozen shoulder”; if the hand on the painful side of the shoulder moves outward to a significantly lower degree than the healthy side, most of the time it is a “frozen shoulder”, which is commonly known as “frozen shoulder”.