Overview of Pelvic Organ Prolapse (POP) By Kilpatrick, MD, MEd, Baylor College of Medicine Reviewed / Revised Dec 2022 View Patient Education Topic Resources Female Pelvic Muscles (Sagittal) Female Pelvic Muscles (Inferior) Pelvic organ prolapse Pelvic organ prolapse results from laxities (similar to hernias) in the ligaments, fascia, and muscles supporting the pelvic organs (pelvic floor—see figure Pelvic organ prolapse).