结肠小袋纤毛虫,系毛口目,小袋科,小袋属的一种原虫,多寄生于猪的肠道,且感染率较高,寄生于人体则罕见,国内报道共65例。笔者在一长期、反复腹泻患者的粪便中检出该原虫的滋养体,报道如下:患者,男,60岁,务农。患者于1992年开始,反复腹泻,时好时差,曾作慢性痢疾诊断,并口服痢特 Colonic pouch ciliates, Department of hairy eyes, pouch division, a small bag of protozoa, parasitic in the gut of pigs, and the infection rate is high, parasites in the human body is rare, a total of 65 cases reported in the country. The author in a long-term, repeated diarrhea in patients with the faeces of the trophozoites detected, reported as follows: patients, male, 60 years old, farming. Patients started in 1992, repeated diarrhea, good time difference, had a diagnosis of chronic dysentery, and oral diarrhea