Which condition occurs when the uterus shifts downward into the vaginal canal?

The condition that occurs when the uterus shifts downward into the vaginal canal is uterine prolapse. This condition happens when the pelvic floor muscles and ligaments become weak, often due to factors such as childbirth, aging, or increased abdominal pressure. As a result, the uterus descends from its normal position into the vaginal canal, which can lead to various symptoms, including a feeling of fullness or pressure in the pelvic area, urinary incontinence, and difficulties with bowel movements.

In contrast, endometriosis involves the presence of endometrial tissue outside the uterus, which can cause pain and other symptoms but does not cause the uterus to move downward. Fibroids are benign tumors within the uterine wall that can lead to complications like heavy bleeding but do not involve prolapse. Pelvic inflammatory disease refers to an infection of the female reproductive organs, often leading to pain or infertility but does not cause uterine displacement in itself. Understanding these distinctions helps clarify the nature and implications of uterine prolapse compared to other gynecological conditions.