Flat erosive sinusitis is a kind of erosive gastritis, the erosion site is located in the gastric sinus, and microscopically, the erosion of gastric mucosa is seen to be flat and covered with white or yellow thin moss. The main symptoms of erosive gastritis include abdominal pain, abdominal distension, nausea, vomiting, etc., and some patients’ symptoms are not obvious. The cause of the disease is not clear, common triggers include trauma, surgery, eating irritating food, nervousness, taking some drugs such as non-steroidal anti-inflammatory drugs. Patients get the disease at the beginning of the symptoms are not obvious, when the appearance of persistent unrelieved abdominal pain, a large number of vomiting and even vomiting blood should immediately seek medical attention, under the guidance of the doctor standardized treatment. If the diagnosis of flat erosive gastro-sinusitis is confirmed, it is recommended to carry out standardized treatment as soon as possible, avoid eating strong tea, coffee, alcohol and other stimulating drinks, reduce the consumption of cold and spicy food, relax and exercise properly.