粪类圆线虫感染期幼虫侵入人体后经肺移行,一般寄居小肠上段。但当人体免疫力低下时,小肠内的杆状幼迅速发展成丝状幼,又可经患者的结肠粘膜或肛门周围的皮肤侵入,行反复自体感染或进入肺、肾、脑等器官异位寄生,常引起严重后果。粪类圆线虫重度感染病例国内只有数例报道,据所查资料广东省迄今尚未见有此病病例报道,为引起重视,特将我们所遇的2例报道如下。 Staphylococcus nematodes infection larvae invade the human body after the lung migration, generally resident in the upper intestine. However, when the human immune system is low, the rod-shaped baby in the small intestine rapidly develops into a filamentous baby, which can invade through the patient’s colon mucosa or the skin around the anus for repeated self-infections or into the ectopic organ such as lung, kidney and brain Parasitic, often cause serious consequences. In our country, there are only a few cases of serious infections of round worm nematode. According to the surveyed data, no cases of this disease have been reported in Guangdong Province so far. To pay special attention, we report the following two cases we encountered.