The baby nipple long white spots, mostly cornu rashes, but also a few seen in the epidermal inclusion body cysts and so on. 1. Corns: sebaceous gland conduit localized blockage of the formation of fat particles, when the sebum is covered by keratin, resulting in sebum can not be discharged normally, thus piling up in the skin underneath the formation of small white spots, this time there is no need to deal with, forcibly picking out the sebaceous glands may cause infection, you can wait for sebum to be detached from the natural. 2. Epidermal inclusion body cysts: If the white spots are larger than 3mm, they may be epidermal inclusion body cysts, which are large cysts protruding from the surface of the skin, and some of them have a tendency to continue to grow, and may need to be removed. The baby nipple white spots, there may be other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, to give targeted treatment or treatment.