Chronic gastritis is not always a pain in the wee hours of the morning. Chronic gastritis is a chronic inflammation of the mucosa caused by Helicobacter pylori, autoimmunity, duodenal-gastric reflux and other factors, mainly manifested as vague pain in the epigastrium, dull pain, epigastric fullness, loss of appetite, nausea and so on. Chronic gastritis abdominal pain is not regular, and the time is not fixed, can occur during the meal, can also occur after the meal, the night pain is obvious, postprandial occurs in the meal within 1 hour, the pain is hidden pain, dull pain or distension and so on. The reason for the obvious night pain is that the vagus nerve is excited at night, stimulating the cells of the stomach wall to secrete more gastric acid, which in turn causes intense stomach pain, but chronic gastritis is not always in the early morning pain. Chronic gastritis pain aggravation can not be relieved, it is recommended to go to the hospital in a timely manner, to give targeted treatment or treatment.