The causes of epigastric protrusion are more varied, and the etiology varies according to the location of the protrusion in the clinic. If the protrusion is in the right upper abdomen, it may be due to liver cirrhosis, liver cancer, etc.; if the protrusion is in the middle upper abdomen, it may be due to pyloric obstruction, stomach cancer, etc.; if the protrusion is in the left upper abdomen, it may be due to pancreatic cancer, etc. 1. Protruding right upper abdomen: When there are diseases related to liver and gallbladder, such as primary liver cancer, liver cirrhosis, intrahepatic cysts, etc., the volume of liver becomes bigger and fuller. From the appearance, the right upper abdomen protrudes. 2. Protruding middle and upper abdomen: it is mostly related to stomach related diseases, especially pyloric obstruction, gastric insufficiency, etc., which can lead to serious flatulence and accumulation of food in the stomach; in addition, when the cancer of stomach is large, it can also lead to obvious protrusion of middle and upper abdomen. 3. Left upper abdomen protrusion: left upper abdomen organs, mainly pancreas, can also lead to left upper abdomen protrusion when there are cysts, malignant tumors and other lesions in pancreas. It is recommended to go to the hospital to improve the auxiliary examination in order to clarify the cause of the disease.