Menstruation is the common term for the recovery time after childbirth, which is medically known as the puerperium, the period between the delivery of the fetus and placenta and six weeks after delivery. Low milk during puerperium can be regulated by strengthening nutrition and general treatment. Less milk during puerperium, insufficient milk secretion, is a common phenomenon after giving birth, usually can strengthen the nutrition to adjust, such as lean meat, eggs, milk, carp, chicken soup, pig’s feet and other protein-rich food, to supplement maternal nutrition to improve. In addition, mothers can be relieved by keeping a pleasant mood, having a good quality of sleep, not overworking and other general treatments. If prolonged low milk supply is not adjusted, it is recommended that mothers can supplement milk powder to their infants on top of breastfeeding to meet the nutritional needs of infants. It is generally recommended that mothers go to the hospital for a follow-up examination about 6 weeks after delivery to observe the recovery of the mother’s body, such as menstruation, breastfeeding, urination and defecation, and weight.