肛瘘 gānglòu anal fistula Definitions Defs Origin Strokes Stroke Words Sentences Sents 肛 gāng anus (bound form) anus; rectum瘘 瘻 lòu fistula An abnormal passage or ulceration leading from an internal organ or infected tissue to the body surface or to another organ; also known as 瘘管 lòuguǎn.