Pubic black to white measures are mainly the following: 1, weak acid solution cleaning: local use of weak acid solution cleaning, such as white vinegar or fruit acids, etc., mainly on the local tissue destruction, so that the epidermis off, or even burn deeper, thus reducing the local melanin production, or destruction of deep melanin cells, at this time the number of melanin production will be reduced, and pubic whitening; 2, bleaching: looking for the doctor to use Red dye bleaching, the melanin cover, so that the local color becomes lighter. If during pregnancy or breastfeeding, the darkening of the pubic area is a normal phenomenon, without bleaching. It is also normal for a woman’s pubic area to darken after puberty. Therefore, it is usually not recommended to bleach the pubic area to remove the pigment, after all, function is more important than appearance.