Ms. Wang, 50 years old, suddenly had pain in her right shoulder and could not lift her hand, could not tie her apron, and could not tie her chest belt, and had insomnia all night when the pain started. The atmosphere of the family has become depressing. Mr. Xie, 42 years old, left shoulder was smashed when working in the workshop, after 1 month of rest, not much pain, but obviously feel weakness, lifting up and lifting activities are limited. He continued to take leave for treatment, and the doctor diagnosed it as frozen shoulder, and after 2 months of treatment and rehabilitation, there was still no improvement, and he could not return to work. After a long time, the leaders and colleagues have opinions, and Mr. Xie is in a more agitated and distressed mood. Are they really frozen shoulders? What is frozen shoulder? Frozen shoulder is also known as periarthritis of the shoulder joint, commonly known as frozen shoulder, fifty shoulder, frozen shoulder. The prevalence of this disease is around 50 years old, with a slightly higher incidence in women than in men. In addition to pain, the most diagnostic sign is the restriction of both active and passive activities, especially the restriction of external rotation. Therefore, if your shoulder has the same range of motion in forward flexion, abduction, backhandedness and external rotation as the opposite healthy shoulder with the help of a doctor or someone else, then please be careful to conclude that you have frozen shoulder, maybe it is not frozen shoulder, but your rotator cuff tendon. Ms. Wang and Mr. Xie were finally diagnosed with a rotator cuff tear by a sports medicine physician and underwent shoulder arthroscopic surgery. So how can patients quickly identify if they have frozen shoulder? The following two simple movements can help you. If the mobility of your affected shoulder is good and not much different from that of a healthy shoulder, you will not normally consider frozen shoulder. You need to use your physician’s “discerning eye” to find the hidden culprit.