Breast pain after pregnancy is mainly due to the increase of estrogen and progesterone in the body, the mammary glands will be enlarged under the action of estrogen and progesterone, and the original breast will be enlarged after pregnancy, which will lead to localized slight swelling and pain, which is a normal phenomenon. When you touch your breasts with your hands after pregnancy, they will become especially soft under the effect of estrogen, which is normal. It is recommended that you take good care of your breasts during pregnancy, and wash the area around your breasts carefully every day when you take a shower. If there is localized nipple inversion, it is recommended that you can do hot compresses, and then gently pull to correct the inversion, which is conducive to better breastfeeding after the birth of the newborn.