小儿再发性腹痛(RAP)是3岁以上儿童常见的临床症状之一,以反复发作性腹痛为主要特征[1]。再发性腹痛是病因隐匿、体征不显、症状突出的腹部综合征。它表现为病程超过3个月以上,每个月均有发作,且次数至少3次以上,发作间歇期表现如常,其中功能性约占再发性腹痛90%[2]。其腹痛可引起儿童痛苦不适,难以忍受,严重时可影响患儿的正常活动及生长发 Recurrent abdominal pain (RAP) in children is one of the common clinical symptoms in children over 3 years of age, with recurrent abdominal pain as the main feature [1]. Recurrent abdominal pain is hidden in the etiology, signs were not obvious symptoms of abdominal syndrome. It is manifested as more than 3 months duration of disease, each episode, and the number of at least 3 times more than normal intermittent episodes, of which about 90% of recurrent abdominal pain [2]. The abdominal pain can cause pain and discomfort in children, unbearable, can affect children’s normal activities and growth in severe cases