The newborn stage of feeding is an important time for the baby to adapt to life outside the mother’s womb after birth. While the baby adapts to the breast milk food and the way it is fed, it is most important that it thus receives adequate nutrition to ensure its growth and development needs. Breast milk is the best choice for babies and its advantages are numerous: it is nutritious, easy for babies to digest and absorb, with the right ratio of the three main nutrients: protein, fat and sugar, and contains a variety of immunologically active ingredients that can strengthen the baby’s resistance. Nowadays, more and more mothers recognize the importance of breastfeeding and make efforts to breastfeed. The way the baby expresses milk, the condition of the mother’s nipples, and the posture of breastfeeding all affect the process and effect of breastfeeding. The need for close contact with the mother within half an hour after birth and trying to suckle the nipple helps stimulate lactation for the mother and is the beginning of learning to suckle and bond with the mother’s nipple for the baby. Even if the mother is tired and weak after delivery and her breasts do not feel swollen, it is important to let the baby suck on the breast as early and often as possible to stimulate lactation, so as not to lose the best time to start breastfeeding. Some mothers do not feed their babies because they think the colostrum is light in color and thin in appearance, and some mothers think the amount of colostrum is too small and they are afraid their babies will not get enough, so they make their own decisions to feed their babies formula or glucose. These perceptions and practices are all very wrong. In fact, colostrum is the most perfect, nutritious and precious first bite of food that a mother can give her baby. It is not too much to compare colostrum to the essence of breast milk. Although the colostrum is small, the nutrients are first-class, especially the immunologically active ingredients that cannot be replicated by any formula, so it must not be wasted and every drop must be fed to the baby. Some mothers are determined to exclusively breastfeed and not add formula to their babies, but their babies’ weight gain is not satisfactory. This situation suggests that the baby may have an inadequate intake. The baby sleeps after eating the milk and the mother thinks the baby is satisfied with the food. In fact, there are two possibilities for a baby to fall asleep after eating milk. One is that the baby is really full and contented and falls asleep. In this case, the baby will sleep peacefully and for a long time, and when he or she is awake, he or she will be in good spirits and at the right weight. Another kind may be that the mother’s milk is not enough, the baby is tired of eating milk and needs to rest for a while, but in fact he is not full, even if he falls asleep soon wakes up again, wants to eat milk again, easily cries, and his weight gain is not ideal. Therefore, mothers should learn to determine if your baby is really full. If the breast milk is really insufficient, resulting in poor nutrition, unsatisfactory weight gain and also affecting the baby’s sleep, it is necessary to supplement the baby with formula in time. There are also mothers who have enough milk, but their babies are still not gaining weight. In this case, the problem may be the feeding method. Some mothers don’t wait for one breast to be empty and start feeding from the other breast the next time they breastfeed, resulting in the baby only getting the mother’s foremilk at each meal. The foremilk in breast milk is high in protein but low in fat, while the hind milk is high in fat. Both the “high protein” foremilk and the “high fat” hind milk are actually very nutritious, so your baby should get both to get the full range of nutrients. If you only or always get the foremilk, you will soon feel hungry and this will affect your baby’s weight gain in the long run. The mother should be careful to feed one side first each time she breastfeeds, and if it is not empty, she should continue to feed the same breast on the next feeding until it is empty and then feed the other side to ensure that the baby gets the foremilk and hind milk. It is more important to make sure that the milk is emptied from one breast than to suck on both breasts every time. Breastfed babies usually do not need separate water feedings because the water contained in breast milk is sufficient. However, if the mother drinks less water, has a lot of sweating or is in a hot environment where the mother herself is already underhydrated, she can feed her baby an appropriate amount of water. Both the amount of urine and the color of urine can help us determine if the baby is dehydrated. If the baby’s urine volume decreases or the color is yellow, both suggest that we should hydrate the baby. More and more babies have developed allergies in recent years. If your baby has severe eczema and blood or blood spots can be seen in the stool, or if a routine stool test reveals red or white blood cells, or even positive occult blood, your baby may have an allergy to formula or some food in your mother’s diet and needs to be diagnosed and treated promptly.