The baby is three months old and has insufficient milk, the specific methods are as follows: First, the baby’s sucking should be strengthened. Experiments have proved that after the baby eats milk, the prolactin in the mother’s blood will increase exponentially, because the baby sucks the nipple can promote the mother’s pituitary gland to secrete prolactin, thus increasing the secretion of milk. Second, supplemental nutrition. Pregnant mothers should eat more eggs, vegetables, fruits or milk in normal times, and prepare more soups, which have a catalytic effect on the mother’s milk secretion. Third, keep the breastfeeding mom in good mood. In the case of relatively low mood, milk secretion will be sharply reduced, so let the mother have a good mood. Fourth, avoid taking drugs, breastfeeding mothers had better not take drugs, some drugs will affect the secretion of milk. Fifth, in the dietary therapy must be improved, such as usually eat more pig’s feet, peanut rice and other foods, the secretion of milk has a good role in promoting.