Rectal prolapse normally describes a medical condition wherein the walls of the rectum protrude through the anus and hence become visible.
Image in medicine. A 45 years female presented with a complain of something coming out through her anus since one year, which comes on.
Rectal prolapse occurs when part or all of the wall of the rectum slides out of place, sometimes sticking out of the anus. See a picture of rectal prolapse.