Uterine prolapse occurs when pelvic floor muscles and ligaments stretch and weaken and no longer provide enough support for the uterus. As a result, the uterus slips down into or protrudes out of the vagina. Uterine prolapse can occur in women of any age. But it often affects postmenopausal women who’ve had one or more vaginal deliveries. Mild uterine prolapse usually doesn’t require treatment. But if uterine prolapse makes you uncomfortable or disrupts your normal life, you might benefit from treatment.