After keeping standing posture for a long time, the symptoms of shoulder pain may be due to the following reasons: 1, long time to keep the standard standing posture, the body’s muscles will be fatigue contraction because of the long time fixed posture, neck and shoulder muscles will also be kept in a tense state for a long time, which will lead to localized soreness and swelling, pain. 2, if you keep standing posture is not correct, the neck stretched forward. Excessive chest, hunchback posture will make the neck muscles and soft tissues around the shoulders by excessive tension and thus easy to cause localized injury, causing pain symptoms. 3, patients with cervical spine disease will also be aggravated because of prolonged standing cervical vertebrae disease, compression of the nerve symptoms aggravated, some of the cervical nerves in the distribution of the shoulder after stimulation of the shoulder pain symptoms.