Newborns can still be breastfed in general, but it is usually recommended to breastfeed as much as possible, breast milk can not meet the growth and development can be added to the formula milk, for the use of special formulas need to be specifically analyzed. Regarding the feeding of newborns, it is usually recommended that exclusive breastfeeding, formula milk feeding or mixed feeding, according to the mother’s milk situation and the baby’s digestive tolerance to choose the appropriate feeding, for no special circumstances (such as lactose intolerance diarrhea affects the weight gain) of the baby to eat formula milk can generally eat breast milk. But for mothers with sufficient milk, and physical conditions allow the usual recommendations for exclusive breastfeeding, breast milk still can not meet the needs of the baby’s growth and development can be added to the formula milk feeding discretion. For some special circumstances, such as lactose intolerance appeared obvious diarrhea, affecting growth and development, in the physician assessment of the use of lactose-free formula milk baby is not recommended to add their own breast milk, need to be based on the baby’s current diarrhea by a specialist physician to decide. Babies who are allergic to cow’s milk proteins and are using hydrolyzed protein formulas are also not recommended to self-add breastmilk. It is advisable to consult a specialist if necessary.