Female physiological place in addition to blackening is related to a variety of reasons, including genetic factors, frequent sex, pigmentation, etc., generally in the case of not affecting health without special treatment. 1. Genetic factors: female nipples or labia major and minor labia color is mainly determined by genetic factors. For women who are not pregnant and have no experience in childbearing, darkening of the labia may also be inherent. 2. Frequent sex life: Due to repeated friction stimulation of the labia during sex, it can lead to an increase in local pigmentation. Its color gradually deepens with the migration of time, which is a normal phenomenon. 3. Pigmentation: In addition, the color of the pubic area can be affected by its own melanin precipitation, but this pigmentation is also related to the level of sex hormones in the body. The depth of its color also varies from person to person, mainly related to the amount of its own pigment. The darkening of the female pubic area may also be caused by other factors, and it is recommended to go to a regular hospital in time to find out the cause. Women should pay attention to keeping their private parts hygienic.