人毛滴鞭毛虫(肠滴虫)所致慢性腹泻本区少见,1999年4月,我院发现1例,现报道如下。徐某,女,40岁,农民。反复腹泻,每日2～3次,腹痛,腹胀,嗳气,食欲不振1年余,曾在其他医院及村卫生室用ＰＰＡ,ＳＭＺｃｏ等抗生素治疗无效,最近症状加重,而来我院就诊。查体:Ｔ368℃,一般情况欠佳, Human hairy flagellate (intestinal Trichomonas) caused by chronic diarrhea rare in this area, in April 1999, our hospital found in 1 case, are reported below. Xu, female, 40 years old, farmer. Repeated diarrhea, 2 to 3 times daily, abdominal pain, abdominal distension, belching, loss of appetite more than 1 year, once in other hospitals and village clinics with PPA, SMZco and other antibiotics ineffective treatment, the recent symptoms worse, come to our hospital. Physical examination: T368 ℃, the general situation is poor,