结肠小袋纤毛虫(Balantidium coil Malmst-en.1857)系异毛目、袋形科、小袋属的一种原虫。多寄生于猪的肠道,偶可传染给人,引起慢性痢疾样症状。人体感染结肠小袋纤毛虫至今在我省未见报道。1984年明我门诊发现人体感染结肠小袋纤毛虫一例,特作报道。患者女,62岁,农民,副业养猪。就诊时诉腹痛、腹泻,伴纳差,恶心20余天,大便呈粘液状,每天4～5次。体检:患者呈慢性病容。肝脾未触及。盲 Balantidium coil Malmst-en.1857 is a protozoa of the order Gracilaria, Pachylope and Pouch. More parasitic in the pig’s intestine, even can be transmitted to people, causing chronic dysentery-like symptoms. Human infected colon pouch ciliates have not been reported in our province. In 1984, I discovered a case of colon infection in the human small intestine ciliates, special report. Female patient, 62 years old, farmer, sideline pig. When the doctor complained of abdominal pain, diarrhea, with anorexia, nausea more than 20 days, stool was mucus-like, 4 to 5 times a day. Physical examination: patients were chronic disease. Liver and spleen not touched. blind