There are mainly the following cases of dark nipples: First, all women with high estrogen levels will have dark nipples and dark areolas and labia minora, which are healthy female characteristics. Women after menopause will have pink nipples and areolas because of low estrogen levels. Second, the color of nipples is not related to age, but normal pigmentation may occur with age. Many women’s nipples are black because of pigmentation, the so-called black nipples after childbirth is relative to the same person, before and after childbirth nipples will have a deepening color, there is no dark-colored nipples are childbirth, no childbirth nipples are pink judgment. Thirdly, there are also genetic factors that determine the color of the nipples. Fourth, because of repeated sexual intercourse and repeated breast sucking, that is, when the same room often kissing the breast to cause the nipple black situation.