Genital standards for 14-year-old boys

14-year-old boys have reached the stage of pubertal development. At this time, they will feel that their reproductive organs are beginning to develop. Usually, it is possible to know through certain data calculations whether the boy's reproductive organs are within a normal range. In addition, the reproductive organs must be kept clean and hygienic, and try not to let viruses invade them. Pay attention to cleaning the reproductive organs every day, especially during the development period.

Spermatic cord: Its main function is to suspend the testicles and epididymis in the scrotum to protect the testicles and epididymis from damage. At the same time, it shrinks or relaxes with temperature changes, allowing the testicles to adapt to the external environment, maintaining optimal conditions for sperm production, and allowing the testicles to have involuntary activities (cremaster muscle).

Ejaculatory duct: The main function is ejaculation. The wall of the ejaculatory duct is rich in muscles and has strong contraction force to help the semen to be ejaculated. At the same time, the opening of the seminiferous duct is located on the steep slope of the urethra, which is small and narrow. In order to ensure the due pressure during ejaculation, on the other hand, the semen seems to have a "squeezing out" feeling through the narrow opening, which triggers the pleasure of ejaculation through nerve reflexes, thereby reaching the orgasm stage.

Penis: The main function is to urinate, discharge semen and have sexual intercourse. It is the main organ for sexual behavior. The skin of the penis is extremely thin, with no fat under the skin, and is mobile and stretchable. The blood sinus of the corpus cavernosum can be attached to the blood. When there is no sexual impulse, the penis is soft. When the sexual bundle (excitation) occurs, the blood in the blood sinus of the corpus cavernosum increases. The penis will expand, thicken, harden and become erect. When the inflow of blood and the return of blood are equal, the penis will continue to erect.

The head of the penis is rich in nerve endings and extremely sexy. When sexual intercourse reaches climax, it is stimulated by the high excitement of the ejaculation center.； 1 case of ejaculation. If the penis cannot erect under sexual stimulation or the erection is not hard enough, it is impossible to have sexual intercourse, which is called "impotence". Abnormal penile erection or penile deformity can cause difficulty in sexual intercourse.

standard

There are many differences in human penises, such as height, fatness, facial features, etc., so they vary in length.

Uneven thickness.