It is not recommended to clean up the granular objects on the nipples after pregnancy because it is a normal phenomenon caused by the change of hormone levels in the pregnant woman’s body after pregnancy. After pregnancy, under the action of estrogen and progesterone, the ducts and alveoli of the breast will develop, thus gradually increasing the size of the breast, the nipple will also gradually become larger, and the nipple and areola will have deepened coloring, the sebaceous glands around the areola will appear dark brown nodules, often called Montserrat nodules, is a normal phenomenon after pregnancy, is to prepare for lactation after the birth, breastfeeding, if you go to clean up. If you are not careful, you may break the skin, leading to local infection, so it is recommended that you do not need to clean it.