Mai’s point, the appendix point, is located in the middle and outer third of the line between the navel and the right anterior superior iliac spine, and Mai’s point tenderness is important in the diagnosis of acute appendicitis. Mai’s point is an important projection of the root of the appendix on the surface of the body, Mai’s point pressure pain can be used to diagnose acute appendicitis, Mai’s point is also commonly used appendicitis surgery incision site. Appendicitis is one of the most common surgical diseases, characterized by metastatic right lower abdominal pain, i.e., abdominal pain first in the periumbilical region, and then metastasized to the right lower abdomen, and the pressure pain at McNeil’s point is a common fixed point of pressure, mostly related to infection. There may also be fever, nausea, vomiting and other symptoms. Ultrasound and abdominal CT examination can further clarify the diagnosis.