Nipple tingling during pregnancy is mainly related to increased hormone levels in the mother’s body. After pregnancy, the level of estrogen and progesterone in the pregnant mother’s body will increase. Under the action of estrogen and progesterone, breast follicles and lobules will proliferate, and there will be an increase in breast size, and slowly the pregnant woman will feel a slight swelling of the breasts and pain in the nipples. At this time, the examination can be found that the color of the areola is deeper than the original, and there will be Montgomery’s nodules, all because after pregnancy, the mother’s hormone level increases caused by. Therefore, if a pregnant woman feels breast pain and nipple pain during pregnancy, she doesn’t need to be nervous. In addition to the exclusion of breast disease, it is a normal reaction to pregnancy, as the weeks of pregnancy increase, breast swelling and nipple tingling will slowly reduce, but, be sure to pay attention to exclude the breast disease.