The blackness at the lower body has several different causes: 1, may be due to the growth of age or long-term sexual friction, resulting in the lower body at the black situation, is a normal physiological phenomenon, basically can not be too much attention. 2, may be the female body hormones, generally into puberty, the female body inside the estrogen and progesterone more, resulting in endocrine disorders, and therefore will cause the blackness at the labia. The blackening of the labia is normal. 3, may be due to their own personal body physique, everyone’s skin color is different, some people have fairer skin, some people have darker skin, and women with dark skin are also darker at the lower body. Usually pay attention to do a good job at the lower body care health care, it is best not to damage the skin.