Conclusion On basis of the relationships among symptom, intestinal permeability, state of gut flora and immune indexs, we can initially set up the standand of clinical stage on IBF.

• 结论 根据患者的临床症状、肠粘膜通透性、肠菌群状态及免疫指标间的关系，可初步建立IBF的临床分期标准。