The first is that nipple infection is caused by bacterial infection, accompanied by redness, swelling, pain and pus flowing from the nipples, and treatment should be warm compresses with warm water and erythromycin ointment or mupirocin ointment. Secondly, consider the fat particles secreted by the sebaceous glands, under normal circumstances there are sebaceous cysts distributed on the nipples, there is a role to prevent nipple dryness, there is no big problem, there may also be in the case of extrusion trauma or estrogen elevation, sebaceous cysts blockage, the mass slowly become larger, if nothing special uncomfortable temporarily can not deal with. You can usually wash with warm water, pay attention not to squeeze, if squeezing hard may cause damage to the local breast ducts, relax and do not care too much.