The appearance of water flowing from the nipples during the 6th month of pregnancy is related to endocrine secretion. During pregnancy, the increase of estrogen and progesterone leads to the expansion of the milk ducts and the secretion of milk, which is accompanied by the enlargement of the areola, the darkening of the areola and the darkening of the nipple. Some people also show more obvious venous capillaries on the surface of the breast, showing a feeling of breast swelling and pain, this situation usually try to pay attention to hygiene, pay attention to cleaning, to wear loose cotton underwear, to reduce the local skin stimulation. You need to pay attention to the diet, not spicy and stimulating food, to avoid causing nipple pain or infection symptoms occur.