1, abdominal pain is the main symptom of acute appendicitis, starting with pain around the umbilicus and upper abdomen, and then shifting to the right lower abdomen a few hours later. 2, gastrointestinal symptoms can appear loss of appetite, nausea, vomiting and other symptoms at the beginning of the disease; 3, temperature changes in general early slightly elevated body temperature, with the development of the disease can quickly rise to 38 ~ 39 ℃; 4, abdominal signs right lower abdomen wheal point fixed pressure pain, rebound pain, muscle tension is the most reliable signs, inflammation and peritoneum can be limited abdominal muscle tension; 5, peripheral blood Examination Leukocytes are significantly increased, mostly at (15-20)×109/L in the early stage.