Penile dimensions of newborn infants.

Of 336 full-term, newborn male infants, penile diameter, length, and volume of the testis were measured. All of the infants were Indonesians. The penile stretched length was 2.86 +/- 0.23 cm and the diameter 0.82 +/- 0.33 cm. There was statistically a significant correlation between penile length and gestational age (p less than 0.01), but no significant correlation between penile length and testicular volume, body length, body weight, or head circumference.