Generally speaking, shoulder pain may be caused by the following common reasons:
1. Scapulohumeral periarthritis: This is inflammation of soft tissue around the shoulder, which will lead to shoulder pain and limited movement.
2. Cervical spondylosis: Cervical related diseases, such as cervical disc herniation and cervical spinal stenosis, may cause shoulder pain and radiate to the arm.
3. Muscle strain or muscle fatigue: Excessive use of shoulder muscles, bad posture and long-term hard work may all lead to shoulder pain.
According to the traditional culture of China, physical discomfort may be interpreted as a sign of good luck or bad luck. But it is not accurate to judge good or bad luck only by shoulder pain. Shoulder pain may be just a symptom of the body, and you can't judge luck by this symptom alone.
If you or others are experiencing shoulder pain, I suggest consulting a doctor or Chinese medicine, who can give accurate diagnosis and treatment suggestions according to specific symptoms and physical condition.