If the patient feels sleepy in the shoulder, it is often due to the following reasons: 1. The patient may have over fatigue, for example, after the patient uses the shoulder to carry heavy loads, this symptom will be produced due to the over fatigue of shoulder muscles and tendons. 2. This situation may be caused by the inflammation of the joints of the shoulder, for example, when the patient develops frozen shoulder or rheumatoid arthritis in the shoulder joint, it will cause the above symptoms due to the stimulation of aseptic inflammation in the joint. 3. This condition may be caused by the stimulation of aseptic inflammation inside the joint, which in turn causes the above mentioned symptoms. 3. This condition may also be caused by the injury related to the shoulder joint, for example, when the patient has rotator cuff injury, the patient may suffer from pain and fatigue caused by the tendon injury, which will lead to the feeling of being trapped in the shoulder. 4. This condition is also common in the case that the patient has insufficient shoulder muscle strength, for example, the patient does not exercise for a long time and is not active, which may lead to the feeling of being trapped in the shoulder. 5. Patients do not exercise for a long time, no activity, will cause the shoulder muscles to produce wasteful atrophy, such patients in the shoulder after doing light activities, it is easy to appear shoulder sleepy situation.