“I found this in my toilet… what is it and did it come out of me?” asks this reader, who has sent in pictures, as well as a video of the organism mentioned in his query. This organism appears to be short in length, white in color, and has a darkly-colored head.

Tiny, black worms have been infesting the house of this reader, who wonders if we can tell her what they are. Our reader, who lives in Sri Lanka, describes the worms as being black and hairy, with a column of yellow dots running the length of its body, and being 1mm-1cm in length.