It is possible to misdiagnose appendicitis because acute appendicitis is one of the common acute abdominal conditions that need to be differentiated from other diseases. A variety of diseases can cause acute abdominal conditions, especially for simple appendicitis, which usually has no obvious symptoms and does not present as typical acute appendicitis, with clinical symptoms manifesting as metastatic right lower abdominal pain, so it is often misdiagnosed at this time and needs to be differentiated from other diseases It is often misdiagnosed and needs to be differentiated from other diseases. The main ones are perforated peptic ulcer, right tubal stone, intestinal obstruction, acute pancreatitis, even gynecological diseases, and acute mesenteric lymphadenitis, all of which may cause acute abdomen. Therefore, when abdominal pain occurs, you should see an experienced doctor and improve laboratory tests such as blood sampling, urine and stool, as well as CT, ultrasound and other related examinations, in order to make a clear diagnosis and differentiate.