Pelvic organ prolapse occurs when one or more pelvic organs, such as the bladder, uterus, or rectum, descend from their normal positions due to weakness or damage in the muscles and tissues that support these organs. The document discusses the anatomy of pelvic floor support, factors that can contribute to prolapse, and how different types of prolapse such as cystocele, rectocele, and enterocele are evaluated and treated. Conservative treatments focus on lifestyle changes while surgical repairs aim to reconstruct the weakened pelvic floor tissues and fascia.