There are three main reasons for pain in the upper back: 1, strain on the muscular tissues of the back, such as the scapular raphe, rhomboid muscle, which is due to long-term low head ambulation, lack of support of the bilateral elbow joints, muscle fatigue will be strained to form inflammatory lesions, metabolic products will stimulate the peripheral nerves, it is easy to have pain symptoms. 2, posterior duodenal bulb ulcer, the duodenal bulb and the back The back belongs to the same spinal cord segment innervation, easy to appear involved pain, especially in fasting and late at night, easy to appear local pain, which is due to the stimulation of stomach acid. 3, the back part of the scapula or thoracic vertebrae location has lesions, such as the local formation of cysts, tumors or other infected lesions, may produce stimulation around the pain symptoms, it is best to go to the hospital to let the doctor check It is best to go to the hospital and let the doctor check and further clarify the diagnosis and then carry out targeted treatment.