What does a woman's nipple black represent?

Disease analysis: Anyone with a high level of female estrogen will have black nipples, black areola and black labia minora, which are healthy female characteristics. After menopause, due to the low level of estrogen, nipples, areola and labia minora will appear pink, which determines that the primary colors of nipples or labia majora and labia minora are genetic factors. Part of it is really caused by repeated sexual intercourse and repeated breast sucking, that is, kissing the breast in the same room often leads to nipple blackening. Disease analysis: With the increase of age, female estrogen secretion increases, and nipples and labia majora gradually turn black, which is a sign of sexual maturity. As long as it reaches sexual maturity, the nipple will turn black and halo.