A shoulder pain, people will immediately think of frozen shoulder, there was a 40-year-old patient shoulder pain, the examination is considered to be the long head of the biceps tendonitis, this is to be closed and rest will be very good, but how to explain, the patient said that they are sure to be frozen shoulder. Also have to say is frozen shoulder, according to their own treatment method after treatment, but in fact, frozen shoulder is needed to strengthen the functional exercise, the two are a little counterproductive. Of course, some doctors will diagnose frozen shoulder as soon as shoulder pain is mentioned, which plays a big role in popularizing this kind of misunderstanding. It can be said that problems with the osteoiliac (bone and cartilage), ligaments, and muscles that make up the shoulder joint can cause shoulder pain, and there are many kinds of diseases. Frozen shoulder is a disease with a specific meaning, has a certain self-limiting process, and has its own pathogenesis and treatment rules. Of course, some other diseases can also cause shoulder pain, such as heart problems can cause left shoulder pain, liver and gallbladder diseases can cause right shoulder pain, cervical vertebrae can be involved in the shoulder or radiated to the shoulder, as well as thoracic outlet diseases and lung apical lesions can cause shoulder pain, so a good differentiation is still very necessary.