My shoulder hurts and I can’t move well. Many people’s first reaction is whether I have frozen shoulder. But this is like when you have a stomach ache and the doctor tells you that you have a “stomach ache”, you don’t know whether it is the liver, spleen, gallbladder or gastrointestinal problem, so how can you treat it? With the development of medical technology, the problems that we used to call frozen shoulder are now in their original form, and professional doctors will no longer diagnose you with frozen shoulder. The causes of shoulder pain are: 1, trauma or exertion: shoulder pain caused by trauma or exertion is very common. 2, impingement syndrome: the most common disease in middle-aged and elderly people, more than the well-known “frozen shoulder”. 3, Rotator cuff tears: mainly due to acute strain, falls or long-term chronic strain. 4, Rotator cuff tear arthropathy: The advanced stage of rotator cuff tear will lead to rotator cuff arthropathy, degenerative changes in the cartilage of the shoulder joint, which is extremely disabling. 5.Adhesive arthritis: Also known as frozen shoulder, fifty shoulder, this disease is more common in people aged 40 to 70.