Pregnant women may have abnormal discharge from their nipples during pregnancy, and it is a normal phenomenon for women to have dirty nipples after pregnancy. Women in pregnancy due to the more vigorous metabolism, nipple enlargement, due to the lack of attention to local cleanliness and hygiene, may lead to the nipple local appear to have more secretions, that is, dirty, you can use warm boiled water to clean, wipe, 1-2 times a day, 3-5 times after the nipple at the dirty things will be scrubbed clean. Women should pay attention to keep their breasts clean and hygienic, wear loose, breathable underwear, and try to avoid excessive squeezing and collision, so as not to lead to nipple depression and affect postpartum milk secretion and baby sucking. After pregnancy, women should pay attention to the cleanliness of the whole body, especially the breasts and vulva, because of the growth and development of the fetus, the amount of food and drink, and the relatively high metabolism.