Three days after delivery, both breasts are full, painful, hard nodes appear, even extending to the armpits, paramammary glands, accompanied by low fever, which is mainly due to lymphatic retention in the mammary glands, venous filling and interstitial edema, as well as poor ducts, generally to seven days after the birth of milk flow smoothly after the pain more subside. Causes: 1. 3-5 days after childbirth, the mammary glands are not open enough for the accumulation of milk. 2, the new mother nipple depression coupled with thick milk, the newborn sucking difficulties caused by breast pain. 3.Depressed mood during pregnancy, which makes the milk excretion not smooth. 4. Inflammation of the new mother’s breast leads to redness, swelling, pain and fever. Daily life precautions: 1. Excessive milk secretion, such as incomplete eating, excess milk must be drained clean. 2. Do not specify the number and time of breastfeeding, and advocate breastfeeding when the baby is hungry and when the mother feels her breasts are full. 3.Open the milk early within 30 minutes after delivery. 4.In order to make the baby eat more milk, the new mother should make the baby contain good milk. 5.Master the amount of maternal milk producing food, such as chicken soup, fish soup and other nutritious soups to eat. 6, before breastfeeding hot compress breast, and do some gentle massage, in order to promote the smooth flow of milk. Ways to reduce breast pain: 1, maternal breast inflammation, at this time should squeeze out the milk, take antibiotics, after 1-2 weeks of treatment can be cured. 2, when the breast appears swollen and painful, use both hands to squeeze out the milk. During the squeezing period, the new mother’s clothes should be loose, drink more water, eat easy-to-digest food and keep in a comfortable mood. 3.When breastfeeding the baby, make sure to empty both breasts. If the little baby cannot finish sucking the milk, it should be squeezed out in time, which can both reduce breast pain and promote milk secretion.