Nipple blanching (turning white) after a feeding occurs when the blood flow to the nipple is limited or cut off. Blanching is most often related to latch problems. Nipple blanching is often, but not always, associated with pain. Because women may describe shooting, burning breast/nipple pain, this can be mistakenly diagnosed as thrush. If the normal color returns after your baby has finished a feeding and there is no pain, then the blanching is not a problem.