The baby is too thin, parents need to look for the reason. As long as the infant formula is produced by regular manufacturers, large supermarkets or maternal and child stores, it is in line with national standards. In addition to the reason of milk powder, we need to analyze whether the mother has problems in feeding. When breastfeeding, do you let your baby have hind milk? When you breastfeed your baby, the milk that you suck out first is called “foremilk”. Foremilk is thin and rich in water and protein. When your baby eats foremilk, he or she gets the water and protein he or she needs to quench his or her thirst, so you don’t have to give water to your baby who is breastfeeding. After the baby has eaten the foremilk, the milk starts to become white in color and thick, this kind of milk is called hindmilk, which is rich in fat, lactose and other nutrients. It provides many calories and makes the baby feel full. Your baby is light in weight, so be careful to let your baby have hind milk. Is the formula milk brewed in the right proportion? On the cans of formula milk, there will be written the way to prepare the formula milk. Some parents are worried about constipation of their babies, so they prepare the formula milk thinner for their babies, this situation will make the baby’s intake insufficient to meet the baby’s growth needs. This will make the baby’s intake insufficient to meet the needs of the baby’s growth. It is recommended to mix formula milk strictly according to the brewing method labeled on the milk powder can. Is the amount of formula milk fed sufficient? Some babies are sleepy and fall asleep while eating, or the opening of the nipple is too small, so the baby struggles to eat and eats less, so the baby’s intake will also be insufficient, it is recommended to adjust the opening of the nipple, and adjust the frequency and amount of breastfeeding. Does your baby have formula milk allergy? How are your baby’s stools? How many times a day? Is it loose stool or burnt stool? Some babies have milk allergy, which is manifested by diarrhea after taking formula. In this case, parents should take their babies to the doctor, who will, according to the baby’s condition, let the baby drink hypoallergenic formula, such as Partially Hydrolyzed Protein Powder (PHP) or Deeply Hydrolyzed Protein Powder (DHP), or in more serious cases, non-allergenic formula – Amino Acid Milk Powder (AAMP). By drinking this kind of formula, the baby will not have diarrhea due to allergy. In addition to breastfeeding attention, parents should also take the baby to the outdoor activities during the day, to enhance the baby’s resistance, reduce the chances of illness. During the day, more babies lie on their stomachs to exercise the baby’s neck, waist and limb strength. More exercise can also improve the baby’s appetite.