There are no 4 signs of appendicitis in clinical practice. Usually with appendicitis there is abdominal pain, nausea, vomiting, fever, and diarrhea. The typical presentation of appendicitis is metastatic right lower abdominal pain. At the beginning of the attack, the pain is manifested as pain in the upper left abdomen or around the navel, and at the same time there are symptoms such as vomiting, nausea, and so on, and then the pain is transferred to the lower right abdomen, which is a persistent pain. The pain will stimulate various organs to cause corresponding symptoms, such as near the bladder will cause frequent urination; near the rectum will cause diarrhea, stimulation of the stomach and intestines will appear nausea, vomiting and other symptoms. Appendicitis appeared without timely treatment, under the stimulation of some inflammation, will lead to the patient’s body fever, severe patients fever can reach more than 39 degrees. In order to prevent complications, it is important to control the inflammation at an early stage, and if the fever remains uncontrolled, appendectomy is the earliest option.