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Updated: Nov 24, 2025

Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse POP Quantification System
Published on: September 20, 2018
Anatomical Distance From the Cervicovaginal Junction to the Uterovesical Peritoneal Reflection
Xiaochun Liu1, Zhuodan Guo, Bing Yu
1From the Department of Obstetrics and Gynecology, Shanxi Academy of Medical Sciences and Shanxi Bethune Hospital, Shanxi Medical University, Taiyuan; and Department of Obstetrics and Gynecology, The Second Hospital of Anhui Medical University, Hefei, China.
Objective:
The objective of this study was to measure the anatomical distance from the cervicovaginal junction to the uterovesical peritoneal reflection (CJ-PR).
Methods:
A total of 120 hysterectomy patients were selected as study subjects. The uterus was removed, and the CJ-PR distance was immediately measured. For total vaginal hysterectomy, measurement was performed intraoperatively. The cervical length was also measured postoperatively.
Results:
The median (interquartile) CJ-PR distance for all subjects was 3.3 (2.9-3.7) cm. Comparison of premenopausal and postmenopausal women without prolapse revealed median CJ-PR distances of 3.3 (3.0-3.6) cm and 3.0 (2.6-3.4) cm, respectively. The CJ-PR distance was longer in women with prolapse (4.6 [3.7-5.6] cm) than in those without prolapse (3.2 [2.8-3.6] cm). The median cervical lengths were 3.1 (2.7-3.6) cm for postmenopausal patients without prolapse and 4.4 (3.6-5.8) cm for postmenopausal patients with prolapse.
Conclusions:
Knowledge of the CJ-PR distance may help gynecologists predict how far the uterovesical PR is from the anterior vaginal incision.
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