The main difference between abdominal distension and gastrointestinal is the difference in the location of occurrence, the difference in etiology, and the difference in clinical manifestations. 1. The different location: the scope of abdominal distension around the navel, the scope is larger. Gastric distension lies in the area above and below the umbilicus and is smaller in scope. 2. Different etiology: abdominal distension is mainly caused by gastrointestinal tract distension due to lesions in the digestive tract organs, while gastric distension is mainly due to gastric diseases that lead to gastric distension. 3. Different clinical manifestations: abdominal distension is mainly manifested by full abdominal distension, which may be accompanied by full abdominal pain in severe cases. Gastric flatulence is mainly characterized by epigastric distension, which in severe cases can lead to full abdominal distension. There are times when it is difficult to distinguish between gastric distension and abdominal distension, and it is necessary to improve the examination to determine, such as gastroscopy, ultrasound and so on.