Related Experiment Video
Updated: May 28, 2026
Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse (POP) Quantification System
Published on: September 20, 2018
Prenatal sonographic evaluation of the penile length
Yuri Perlitz1, Leandro Keselman, Sami Haddad
1Department of Obstetrics and Gynecology, The Baruch Padeh Medical Center, Poriya, Tiberias, Israel. yperlitz@poria.health.gov.il
Objective:
To construct cross-sectional reference range of the penile length during pregnancy, measuring it from the proximal edge of the corpus cavernosum to the tip of the glans penis.
Methods:
Fetal penile length was measured by high resolution transvaginal ultrasound at 14 to 16 weeks and by transabdominal ultrasound at 17 to 35 weeks' gestation.
Results:
Fetal penile length increased significantly with gestational age (GA), from 7 mm at 14 weeks' to 50 mm at 35 weeks' gestation. Penile length measurements were strongly related to the biometric fetal measurements.
Conclusions:
A reference range of the fetal penile length was constructed, measured from the proximal edge of the corpus cavernosum to the tip of the glans penis at 14 to 35 gestational weeks. This reference range can assist in early identification of true penile maldevelopment, which obligate further diagnostic workup, as opposed to the benign disorder of buried or concealed fetal penis.
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