After the occurrence of appendicitis, the typical symptom is metastatic pain in the right lower abdomen. At the beginning of the pain, the pain is located in the upper abdomen. After 6 to 8 hours, the pain will transfer to the right lower abdomen. Clinically, about 80% of appendicitis will have typical symptoms, and a small number of appendicitis starts the right lower abdomen pain at the onset of the disease. If appendicitis is mild, it can show mild dull pain. Suppurative appendicitis can show severe pain. After appendicitis perforation, it can cause pain to expand. When appendicitis attacks, it can also be accompanied by gastrointestinal symptoms such as anorexia, nausea, vomiting, etc. Appendicitis stimulates the rectum, which can cause diarrhea, and bladder irritation, which can cause frequent urination and pain, Severe appendicitis can cause chills and fever.