The patient should have shoulder pain and suspect that she has frozen shoulder, but has not been diagnosed, which is why she is asking this. The lower the level of medical care, the more common periarthritis is! This is due to the overly general definition of frozen shoulder. There are several systems around the shoulder, such as muscles, bones, nerves, blood vessels, etc. Any injury or abnormality in any system may cause severe pain, and depending on the cause, the measures taken differ. Frozen shoulder is actually very inaccurate, and the same patient with frozen shoulder may well have more than two treatment plans, or even contradict each other, due to They have different fatal factors, but cause extremely similar symptoms, and many young doctors are likely to be deceived and have a wrong diagnosis. For example, we often talk about the conservative exercise method “arm flinging”, many patients with shoulder pain, the first idea is to fling their arms, many patients benefit from this, so spontaneous propaganda to tell their relatives and friends around, but some patients more flinging arms more pain, painful, and then go to the hospital is still told: continue to fling. This is not an isolated case, at least I have seen this kind of patients, when the patient was diagnosed with frozen shoulder in the local hospital in the third month after the disease, and was told to go home and exercise. Strenuous activity is strictly forbidden at this time because it will make the tear bigger and bigger, and the symptoms will gradually worsen. It is recommended that the patient find the cause of the shoulder pain first and then talk about how to treat it! In addition to the rotator cuff injury I mentioned above, there are many other possible causes of shoulder pain. Acromioclavicular impingement; this is also very common in clinical practice, and patients often have other problems with it, such as the rotator cuff tissue injury I mentioned above, etc. Such patients are mostly born with an abnormal shape of the acromion, so that as they grow older, they will experience severe pain due to collision and friction with the humeral head and the formation of bone spur hyperplasia. Cervical spondylosis: This is a chronic disease with high visibility in modern times, with countless people suffering from it. Neck and shoulder pain is the most basic symptom, not to mention the stimulation of nerves and compression of the spinal cord, which may lead to the appearance of neck pain even if it is only the lightest cervical type of cervical spondylosis. The human body is not a machine, we should not just look at the surface, and we should not have the idea of “because it is not, it is”, and people who do not even know the cause of the disease will give you a bunch of solutions, do you really believe it? Pain is only a symptom, it does not reflect the condition, let alone confirm the diagnosis of the disease.