The POP-Q (Pelvic Organ Prolapse Quantification) system uses 6 points referenced to the hymenal ring. Point C measures which anatomical landmark?

• A Most distal edge of the anterior vaginal wall
• B Most distal edge of the posterior vaginal wall
• C The most distal (or dependent) edge of the cervix or vault (in hysterectomised women) ✓
• D The posterior vaginal fornix / cul-de-sac depth

Explanation

In the POP-Q system, the 6 measurement points are: Aa (anterior wall, 3 cm proximal to hymen), Ba (most distal anterior wall), Ap (posterior wall, 3 cm proximal to hymen), Bp (most distal posterior wall), C (cervix or vault — most distal edge), and D (posterior fornix in uterus-present women; omitted after hysterectomy). All are measured in cm relative to the hymenal ring (negative = above/inside, positive = below/outside). Point C specifically measures the cervix or the vaginal cuff apex. The genital hiatus (gh) and perineal body (pb) and total vaginal length (TVL) complete the 9-variable POP-Q assessment.

Reference: Shaw's Textbook of Gynaecology, 17th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.