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Updated: Aug 13, 2026

Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse (POP) Quantification System
Published on: September 20, 2018
Normal pelvic floor anatomy
1Department of Obstetrics and Gynecology, Tufts University School of Medicine, Boston, Massachusetts, USA. kris.strohbehn@es.nemc.org
Abstract:
The anatomy of the pelvic floor includes structures responsible for active and passive support of the urethrovesical junction, vagina, and anorectum. Intrinsic and extrinsic properties of the urethrovesical neck and anorectum allow maintenance of urinary and anal continence at rest and with activity. Damage to these structures may lead to loss of support and loss of normal function of the urethra, bladder, and anorectum. Over time, this damage can result in isolated or combined pelvic organ prolapse, urinary incontinence, and anal incontinence.
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