When pregnant, if pregnant women have nipple pain, most of them are related to the further enlargement of the breasts during pregnancy, and are also related to not paying attention to nipple hygiene. For this situation, it is necessary to choose more appropriate underwear, do not wear non-pregnancy underwear with steel ring, wear more loose, comfortable cotton underwear, so as not to affect the blood circulation of the breast. When cleaning the nipples, it is recommended to use water to rinse, do not use shower gel or soap to clean the breasts, which can easily lead to nipple cracking. Do not overstimulate the nipple, overstimulation of the nipple will cause nipple pain, easy irritation caused by uterine contractions, if the uterine contractions are more frequent, will increase the risk of miscarriage.