If the vulva is darkened, it basically will not return to white. After menopause, due to the decline of ovarian function, the level of estrogen decreases, which may cause the local skin color of the vulva to become lighter. The reason for the darkening of the vulva is that after puberty the ovaries start to secrete estrogen and progesterone periodically, and the mucous membrane of the vulvar skin becomes darker under the effect of estrogen, especially after pregnancy, the estrogen will increase thousands of times, so it will lead to a darker color of the mucous membrane of the vulvar skin. After childbirth, as estrogen decreases, it may cause the local skin color to lighten, but the vast majority of them are difficult to return to white at childbearing age and may lighten in color after menopause.