Soreness and pain in the shoulder in the morning is commonly associated with periarthritis and chronic inflammation of the shoulder joint, as follows: First, periarthritis of the shoulder joint: Elderly patients around 50 years old who have shoulder soreness and pain when they wake up in the morning, most of them have periarthritis of the shoulder joint. Patients will have shoulder joint soreness and pain and limited shoulder joint activity, and it will be accompanied by shoulder joint weakness, and active and passive activities are obviously limited. Second, chronic inflammation of the shoulder joint: chronic inflammation of the shoulder joint, such as degenerative osteoarthritis, will also cause shoulder joint pain in the morning, accompanied by shoulder joint stiffness for a short period of time, after appropriate activities, the shoulder joint range of motion will be restored. Therefore, patients with shoulder pain in the morning should pay close attention to the symptoms and provide timely treatment according to different causes to completely relieve the clinical symptoms such as shoulder joint pain and shoulder joint movement limitation.