Many elderly patients who develop shoulder pain think they have frozen shoulder, so they do serious shoulder exercises every day, touching the shoulder high, shaking the bladder …… many tricks are used, but in the end the situation is getting worse. Because the concept of frozen shoulder is too general, it is no longer used internationally, and the image term frozen shoulder is now used to summarize the disease. A frozen shoulder, as the name implies, is a condition in which the shoulder joint is frozen, limiting mobility to a certain degree. There are two types of frozen shoulder: primary, which is often related to the immune system, and secondary, which is caused by metabolic diseases such as diabetes, hyperthyroidism, or after shoulder trauma or surgery. Most patients with frozen shoulder will heal after 1-2 years with rehabilitation exercises, while only a few patients require surgical intervention. However, not all shoulder pain is due to frozen shoulder. There are several common shoulder disorders in the elderly that can also cause shoulder pain, such as acromioclavicular impingement, rotator cuff injury, and biceps long head tendon injury ……, of which rotator cuff injury has a prevalence of about 30% in patients over the age of 60. The methods of treatment for these shoulder disorders are often very different, with more than 1,000 rotator cuff injury patients in the United States alone being treated with shoulder arthroscopy each year.” A simple method commonly used in the United States for patients to identify if they have frozen shoulder is to hold the steering wheel with both upper extremities and then rotate the forearm on the painful side outward, and if it can rotate freely outward away from the steering wheel, it is not a frozen shoulder. Therefore, elderly patients with shoulder pain should not blindly perform shoulder exercises, but should go to a hospital specialist for a clear diagnosis and receive the correct treatment.