The reason for the lack of milk is not necessarily effective, it depends on what causes the lack of milk. If it is a deficiency of qi and blood that leads to insufficient milk, moderate consumption of Colla Corii Asini will have a certain effect, because Colla Corii Asini has the effect of nourishing qi and blood. However, if the lack of milk is caused by bad mood, then the consumption of Colla Corii Asini has no effect, mainly need to regulate the mood. If it is a blockage of the mammary ducts lead to milk secretion is not smooth, eating the gum is not very effective, this situation needs to let the baby suck more, or the use of breast pumps to make the milk secretion smooth to be useful. Therefore, the consumption of Colla Corii Asini needs to be determined by the individual, if consumed improperly, but will lead to increased bleeding or dribbling after delivery, which is not conducive to the recovery of the body.