Why is vaginal leprosy black?

The penis is an important reproductive organ that represents male sexual ability, so male friends generally care more about the length and appearance of the penis. When men enter puberty, the penis will gradually grow, and as they grow older, more and more men will find that the color of the penis gradually becomes darker. The gradual darkening of the penis color is mainly related to pigmentation. Next, we will explain to male friends the reasons for the dark penis.

Regarding the color of the penis:

First of all, in terms of congenital factors: after entering puberty, the genitals will begin to show pigmentation. All these phenomena are due to the long-term stimulation of sex hormones in these parts, which causes a large amount of melanin to deposit and make the skin color become very dark. No wonder some people say that the color of the genital skin is a "display" of sex hormones.

Secondly, as for the acquired factors: frequent and regular sex can make you produce more sex hormones. At the same time, coupled with the long-term and frequent congestion and friction of the penis, this will of course make your penis continue to become deeper on the original basis.

As for "some people's pubic hair is still white even at the age of 13 (boys with a lot of pubic hair)", they are only 13 years old, they have just entered puberty, and they have not had sexual stimulation yet, so of course the color will be very light, which is normal. It will turn dark after frequent sexual stimulation in the late development period around the age of 20. In addition, this also has a lot to do with your own skin color. People with naturally dark skin will be darker.