Clinical signs: 1. Symptoms: 1, abdominal pain: there at the beginning or Qizhou epigastric pain, a few hours due to local peritoneal spread of appendicitis, and the pain started in the appendix fixed location, but young children can not describe illness only in abdominal pain, irritability, abdominal pain so children v. , we must not only consider improper diet or gastroenteritis, and the presence of appendicitis must be vigilant 2, gastrointestinal symptoms: vomiting early in anorexia, and some increase in the number of bowel movements, and often less serious easily overlooked. If peritonitis with intestinal paralysis, vomiting heavier, often with vomiting of bile. As the rectum Jire, significantly increased stool frequency. 3, the temperature: 12 to the early onset often low heat for 24 h, 38.5 ℃ more in the following. Perforation of the event, the temperature can quickly rise to more than 39 ℃. Because infants have not yet perfect nervous system development, the central regulating body temperature instability, changes in temperature and disease often not directly proportional to the situation, and sometimes can be high fever early. Second, the signs: a preliminary understanding of the whole situation after abdominal tenderness determine the appropriate pressure and muscle tension in the region, should keep the attention of children with facial expressions, to determine tenderness site. When the children to check bed, bent over to help walk or dignitaries, which formed a circle right in the bed was lying rather than lie flat, show that the existence of a genuine pain. As appendectomy position of variation can be used for larger children psoas muscle in situ tests determine whether appendectomy, with obturator tests determine whether pelvic bit appendectomy.