There are many reasons why nipples often have white secretions, and the analysis is as follows: 1. fat particles, the sebaceous glands secrete fat to lubricate the nipples to prevent nipple dryness, and if they are not cleaned for a long time, fat particles accumulate on the nipples and need to be cleaned frequently to prevent nipple infection. 2. coagulated milk, during pregnancy and lactation under the influence of lactogen, there will be a lot of milk secretion in the breasts, and the nipples exude