Stomach enlargement and protrusion may be related to dietary disorders, pyloric obstruction, stomach tumors, etc. Usually it can be treated with dietary adjustment, medication or surgery. 1. Dietary disorders: Dietary disorders, overeating, leading to gastrointestinal function decline in indigestion and so on, thus the stomach bloating protrudes out. This situation needs to actively adjust the diet, avoid eating spicy, greasy, and daily appropriate physical exercise to ease. 2. Pyloric obstruction: pyloric obstruction causes the food in the stomach to be unable to enter the intestines to be digested and absorbed, thus showing that the stomach becomes bigger and protrudes out. Endoscopic balloon dilatation can be performed to dilate the pylorus and relieve the obstruction. 3. Stomach tumor: in the middle and late stages, stomach tumor will obviously show thinness, and the stomach will become bigger and protruding. In this case, most of the patients will undergo radical resection. There may be other reasons for the stomach to become large and protruding, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy under the guidance of the doctor.