There are two causes of large nipples in women, one is physiological and the other is pathological. Physiological large nipples are mainly related to genetic factors, but also to hormone secretion. If women secrete more hormones before menstruation, their breasts will appear swollen and full, and this time the nipples will become larger. In addition, there is also a possibility that the nipples will also become larger due to too frequent sex. In the case of women after childbirth, babies who are repeatedly stimulated by sucking can also lead to larger nipples. These conditions are physiological and do not require treatment. If the nipples are pathologically large, you should pay attention to the possible existence of diseases, such as inflammation of the nipples or mastopexy, tumors and other breast diseases, to go to the hospital for relevant examinations, and in ordinary life, pay attention to local protection measures, regular washing of underwear, to maintain local hygiene conditions.