Nipple pain during breastfeeding is caused by the following situations: First, it may be caused by the child’s improper sucking. The child did not take all the nipple part into the mouth when eating milk, just contain the tip of the nipple, not the bottom of the areola part of the nipple is also contained, the force area is too small, repeated sucking on the tip of the nipple pain, breastfeeding attention needs to change the position of the breastfeeding, to reduce the stimulation of the nipple by sucking. Secondly, the nipple may be cracked, due to the baby’s improper sucking or incorrect breastfeeding position, may be the baby has been biting the nipple when breastfeeding or stretching the nipple, so that the nipple damage and pain. If your nipples keep hurting when breastfeeding, it is best to distinguish what is causing it, pay attention to the posture when breastfeeding, and protect your nipples by applying milk on them for cracked nipples.