Acute gastroenteritis and acute appendicitis are two clinically confusing diseases: 1. Since the early stage of acute appendicitis mainly manifests as pain in the upper abdomen, it is easily confused with acute gastroenteritis. However, the typical feature of acute appendicitis is metastatic right lower abdominal pain, about six hours to about half a day, the pain site will shift and fix the right lower abdomen, the pain site of acute gastroenteritis is fixed in the upper abdomen unchanged, so whether it will shift and fix the right lower abdomen is the main symptom to distinguish acute gastroenteritis and acute appendicitis.2. The diagnosis can be confirmed with further examination. The main treatment for acute gastroenteritis is through intravenous supplemental nutrition and the application of antibacterial drugs, mostly cephalosporins and quinolones. For acute appendicitis, surgery is required to remove the appendix to prevent the appendicitis from becoming chronic or perforated.