Patients with acute appendicitis can experience abdominal pain, and the most typical symptom is metastatic right lower abdominal pain. At the onset of acute appendicitis, the pain is often manifested as periumbilical involvement, which is visceral in nature. After a period of time, approximately 6-8 hours, the inflammation of the appendix stimulates the mural peritoneum and can cause pain in the right lower abdomen, which is the typical abdominal pain manifestation of acute appendicitis and the pathogenesis of metastatic right lower abdominal pain. Therefore, patients with acute appendicitis will have pain at the early stage of the disease, and if the disease progresses to the late stage of the formation of purulent acute appendicitis, the condition is more serious at this time, the local pain is obviously unbearable, and even the pain of the whole abdomen appears, and the pressure pain and rebound pain can be obvious during physical examination.