Penile and Testicular Sizes of Korean Children

Chung, Ky Hyun; Choi, Hwang; Kim, Si Whang

Abstract

A study on the penile and testicular sizes was made on 1,071 Korean children. The penile length was obtained by assessing stretched length from the tip of the glans to the base of the penis at its attachment to the symphisis pubis. The testicular relative volume was obtained by use of the testicular length, and following results were obtained. l. In newborn, the mean and standard deviation of the stretched penile length were 3.3cm and O.5 cm. 2. The penile length has increased slowly till 4 years old and, following the steady phase, it increased rapidly from the puberty. At the age of l4, it reached 8.8cm. 3. The testicular growth begun with the onset of the puberty. Its relative volume of 14 years of age was 13.7 times as much as that of newborn.