新概念:一种以腹痛或腹部不适伴排便 习惯改变为特征的功能性肠病 a group of functional bowel disorders in which discomfort or pain is associated with defecation or a change in bowel habit, and with features of disordered defecation新概念:一种以腹痛或腹部不适伴排便 习惯改变为特征的功能性肠病 …a group of functional bowel disorders in which discomfort or pain is associated with defecation or a change in bowel habit , and with features of disordered defecation