Generally a milk burst is 80-100 ml of breastmilk, depending on the person, to strengthen breastfeeding. Milk burst is the milk spray reflex, postpartum breastmilk is the baby’s safe and most suitable natural food, conditions allow it is recommended to adhere to exclusive breastfeeding for six months. When breastfeeding, when the baby sucks on the nipple when the milk flows out quickly and a lot, this is the milk burst, indicating that the milk secretion is sufficient, generally a milk burst about 80-100ml. Postpartum milk secretion is closely related to maternal sleep, nutrition, mood and health condition, etc. After delivery, we should ensure that mothers get enough sleep, eat more protein and calorie-rich food, such as broth, etc., and keep a relaxed and happy mood, but also encourage mothers to breastfeed diligently to ensure that the breasts can be emptied normally as much as possible, so as to avoid the accumulation of breastmilk.