急性阑尾炎是小儿常见的急腹症 ,多见于较大儿童 ,2岁以下则相当少见 ,1岁以下罕见。笔者治疗 1例 40天婴儿急性阑尾炎并腹膜炎 ,现报告如下。患儿 ,男 ,40天。因发热 3天 ,呕吐、腹胀 1天入院。患儿 3天前开始发热 ,体温持续在 3 9～ 40℃ ,伴恶心 ,吸奶量少。入院前一天患儿 Acute appendicitis is a common acute abdomen in children, more common in older children, 2 years of age is quite rare, less than 1 year old. I treat a 40 cases of infants with acute appendicitis and peritonitis, are as follows. Children, male, 40 days. 3 days due to fever, vomiting, abdominal distension 1 day admission. Children with fever 3 days ago, body temperature continued at 39 ~ 40 ℃, with nausea, less milk. Children with a day before admission