The difference between acute gastritis and acute gastroenteritis is as follows: 1. The difference in clinical symptoms: acute gastritis is mainly manifested as pain under the subxiphoid process, accompanied by abdominal distension, nausea, vomiting, and poor appetite; while the typical manifestation of acute gastroenteritis is vomiting and diarrhea, and patients will have pain under the subxiphoid process and mid-abdomen, accompanied by abdominal distension, nausea, vomiting, and diarrhea, which is simply understood as acute gastroenteritis with symptoms of intestinal infection; 2. The difference between acute gastritis and acute gastroenteritis: acute gastritis is mainly manifested as subxiphoid pressure pain or no pressure pain; while acute gastroenteritis can have subxiphoid pressure pain and mid-abdominal pressure pain, or no pressure pain, generally both without rebound pain; 3. The difference between auxiliary examinations: the stool routine of acute gastritis is normal; the stool routine of acute gastroenteritis mostly suggests a large number of white blood cells, and due to more frequent bowel movements, the intestinal mucosa may be damaged and a positive stool Positive occult blood test.