In uterine prolapse, your uterus moves from its normal position down into your vagina. The uterus may be only slightly out of position, or it may descend so far that it can be seen outside the vagina. The uterus is the muscular organ at the top of the vagina.
Babies develop in the uterus, and menstrual blood comes from the uterus.
Uterine prolapse occurs when your muscles and ligaments are weakened or stretched so that they no longer hold the uterus in place. Often this is the result of childbirth or normal aging. Another cause of uterine prolapse is an inherent weakness of the support systems of your uterus and vagina, which may be inherited. The prolapse can be worsened by being overweight, coughing, straining to move your bowels, and lifting heavy objects. With moderate prolapse, you may have a heavy sensation in your lower abdomen, or you may feel as if you are sitting on a ball.