普通胃肠病门诊中,有症状而无器质性病因者约占半数,其根本原因多系功能性。腹痛、胀气、气过水声、排气、腹泻或便秘和粘液便等常在无器质性疾病时产生,如持续日久,可认为患者系肠激惹综合征。每人可有过各种腹部不适感,但并无一明确界线 Ordinary gastroenterology clinic, symptoms and no organic cause about half, the root causes of multi-functional. Abdominal pain, flatulence, gas over the water, exhaust, diarrhea or constipation and mucus will often occur in the absence of organic diseases, such as persist for a long time, can be considered in patients with irritable bowel syndrome. Each person may have had various abdominal discomforts, but there is no clear boundary