肠易激综合征(irritable bowel syndrome,IBS)是一组包括腹痛或腹部不适、排便习惯改变和大便性状异常,持续存在或间歇发作,而又缺乏形态学和生化异常改变可资解释的症候群。目前认为属于胃肠功能紊乱型疾病。IBS的病因和发病机制尚不明确,普遍认为可能存在多种因素,包括精神心 Irritable bowel syndrome (IBS) is a group of symptomatic groups that include abdominal pain or abdominal discomfort, altered bowel habits and stool abnormalities, persistence or intermittent episodes, and lack of morphological and biochemical abnormalities. Currently considered to be gastrointestinal disorders. The etiology and pathogenesis of IBS is not yet clear, and it is generally accepted that there may be a number of factors including psychic heart