How to determine if you have appendicitis has the following aspects: 1. According to the medical history, whether the abdominal pain or fever is first, generally patients with appendicitis have abdominal pain and then fever, rather than fever and then abdominal pain, and the location of the abdominal pain can also be identified. In appendicitis, the abdominal pain starts from the pain around the umbilicus and gradually shifts to the appendicular pressure point in the right lower abdomen. The pain in the right upper abdomen, left lower abdomen and other locations is not the typical pain location of appendicitis, except for special appendicitis are not considered the possibility of appendicitis. 2, according to the auxiliary examination and physical examination, physical examination, if there is fixed pressure pain and rebound pain at the appendiceal mike point in the right lower abdomen, the diagnosis of appendicitis can be confirmed. If there is no typical pressure pain and rebound pain, it is necessary to pay attention to differentiation. In the ancillary examinations, whether there is a significant increase in white blood cell count, granulocyte percentage, and C-reactive protein is also a basis for differential diagnosis, and whether there is a significant increase in ultrasound and CT examination of the appendix, local exudation and omental coating are also aspects of appendicitis diagnosis.