Pelvic organ prolapse occurs when the pelvic organs (e.g., the uterus or bladder) fall or slide down into the vagina. Pelvic organ prolapse can be corrected with surgery. Some types of surgery try to restore the normal anatomy and function of the vagina (i.e., reconstructive surgery). Other surgery repairs the prolapse by essentially closing the vagina (e.g., colpocleisis or colpectomy), thereby leaving a woman unable to have vaginal intercourse in the future.