Definition of Uterine prolapse:

Uterine prolapse is falling or sliding of the uterus from its normal position in the pelvic cavity into the vaginal canal.

Causes, incidence, and risk factors:

The uterus is held in position by connective tissue, muscle, and special ligaments in the pelvis. The uterus drops into the vaginal canal (prolapses) when these muscles and connective tissues weaken.

Uterine prolapse usually happens in women who have had one or more vaginal births. Normal aging and lack of estrogen hormone after menopause may also cause uterine prolapse, as can chronic cough (such as a smoker's cough) and obesity. Uterine prolapse can also be caused by a pelvic tumor, although this is rare.

Chronic constipation and the pushing associated with it can worsen uterine prolapse.