Is 8 years old child testicular penis normal?

summary

Puberty is a period of rapid growth and change of human sexual organs and characteristics. In men, the development of testis and penis and the appearance of secondary sexual characteristics are the main manifestations. The order of male sexual development is: testicular volume increases, penis grows, pubic hair and armpit hair appear, laryngeal knot and beard appear, voice becomes thick, spermatorrhea appears. Testicular enlargement is the first sign of puberty. Now I'd like to introduce 8-year-old children's testicular penis normal?.

Is 8 years old child testicular penis normal?

First, the testis is the most important organ in the male reproductive system, located in the scrotum, oval, smooth surface, one on the left and one on the right. From birth to puberty, testicular development in men is relatively static, generally about 3ml. After puberty, testicular volume increases rapidly. 8-year-old children have not yet entered the stage of development, testicular penis is of course normal.

Second: adult testes are generally 4.3-5.1cm long, 2.6-3.1cm wide, 2-3cm in diameter, and 15-25ml in volume. In healthy Caucasians and African American blacks, the testicles of adult males are generally larger than 3cm * 4cm and larger than 20ml, while the testicles of Asian males are relatively small and larger than 12ml. The testicles of the elderly are slightly atrophied, soft and small with age.

Third: the size of testis can be measured by caliper, testicular measurement model and ultrasound. If the volume of adult testis is less than 10ml, the physiological function of testis has been affected. May lead to spermatogenesis disorders, semen examination showed oligospermia or azoospermia; May also lead to testicular endocrine dysfunction, resulting in male secondary sexual dysplasia.

matters needing attention

The volume of testis directly reflects the development of gonad. There are a lot of seminiferous tubules in testis, which are the place of spermatogenesis; Leydig cells in the testis can synthesize and secrete androgen. Because of the importance of testis to men, we must pay special attention to it.