Milk scale, folliculitis, mastitis, fat and so on will make the nipple gouge out white particles, general nipple parts will not gouge out white particles, but in the youthful development or physiological period, the breast will secrete a small amount of liquid, the liquid gathered in the nipple on the precipitation, there will be a white particles, with the hand to be able to gouge out. Normally, the sebaceous glands of the nipple will secrete a small amount of liquid, due to certain factors will lead to hair follicle blockage, so the secretion is not discharged smoothly, the hair follicle area on the nipple will be white, at this time, pick the hair follicle, there will be white particles appear. The white particles appearing on the nipple during breastfeeding are considered to be related to mastitis. Inflammation infects the nipple and invades the milk ducts, resulting in the ducts being clogged with milk that can’t be discharged, forming white particles at the opening of the ducts. In addition, women like to eat high-fat food in their diet, the nipple area will appear white fat particles, is a manifestation of fat grain.