The middle part directly above the navel, i.e. the upper abdomen, mostly belongs to the area where the intestines and stomach are distributed. Therefore, pain directly above the navel is mostly considered to be gastrointestinal diseases, such as gastric insufficiency, gastritis and peptic ulcer. In addition, common acute pancreatitis, peritonitis, may also lead to patients with pain in the middle part above the navel: 1, gastric power deficiency: mostly manifested as indigestion, persistent or recurrent epigastric discomfort. Symptoms such as fullness, abdominal distention, nausea, vomiting, heartburn and regurgitation occur after meals. Most of them are due to abnormal secretion of gastric acid or the presence of esophageal lesions such as reflux esophagitis and esophageal cancer, as well as the increase of age leading to weakening of gastrointestinal function; 2. Gastritis: Gastritis has chronic gastritis, acute gastritis and special type of gastritis, etc. It is often manifested as pain in the upper middle abdomen, bloating, belching, nausea, loss of appetite and gastrointestinal bleeding. Acute gastritis is mostly due to stress, drugs, alcohol and trauma. Chronic gastritis may be related to Helicobacter pylori infection, autoimmunity, duodenal-gastric reflux and other factors; 3. Peptic ulcer: typical symptoms are epigastric pain, which can be dull, burning, distension, severe pain, and hunger-like discomfort in nature. There is also a category of asymptomatic ulcers, most of which do not have symptoms of abdominal pain or indigestion, and the first symptoms are commonly complications such as gastrointestinal bleeding and perforation. Peptic ulcer often occurs in the gastroduodenum, can occur in the esophagus-gastric anastomosis, gastrojejunostomy or nearby; 4, pancreatitis: may also be pancreatitis acute abdominal pain, mostly occurs suddenly after a full meal or drinking, is a continuous severe pain, mostly located in the upper left abdomen or even the whole abdomen, can be radiated to the back, curled position and forward leaning position can make pain relief; 5, pleurisy: abdominal pain for the typical symptoms of peritonitis Symptoms, the degree and extent of pain depends on the type of peritonitis, the degree and extent of the lesion and the patient’s own reaction. Therefore, epigastric pain may be peritonitis, usually into severe and persistent pain, while the patient can also appear nausea, vomiting, rising body temperature and other symptoms.