The Turkish Journal of Pediatrics 2011 , Vol 53 , Num 3
Penile Size in Term Newborn Infants
Departments of 1Pediatrics, and 3Urology, Dr. Lütfi Kırdar Training and Research Hospital and 2Division of Pediatric Endocrinology and Adolescents, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey Akın Y, Ercan O, Telatar B, Tahran F. Penile size in term newborn infants. Turk J Pediatr 2011; 53: 301-307.

The objective of this study was to establish standard penile size in healthy full-term Turkish newborns and to evaluate the relation between penile and other anthropometric measures. For this prospective study, stretched penile length (SPL) and penile diameter (PD) of live-borns delivered in our hospital between September 2007-December 2008 were measured, and their birthweight, length and head circumference were recorded. Penile versus other anthropometric correlations were determined by Pearson analyses, followed by linear regression. In 1217 full-term subjects, mean SPL was 3.16±0.39 cm (±2.5 SD=2.19–4.14 cm), and mean PD was 1.21±0.11 cm (±2.5 SD=0.93–1.49 cm). Linear regression analysis showed a strong correlation of SPL (p=0.0001) to height, and PD to height (p=0.0001) and birthweight (p=0.002). Formulas were calculated for predicted individual values for PL and PD of newborns. In conclusion, there is a correlation between neonatal anthropometric measurements and penile anthropometry. Mean anthropometric differences of various ethnicities may account for the differences in mean SPL and PD among various ethnic populations. Keywords : newborn, anthropometric values, micropenis, penile length, penile diameter.

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