There are often scenarios in life where the baby has just finished eating formula and within a minute or two, the baby suddenly spits up all the formula that he or she has just eaten in the stomach. At this time, most parents are panicking. So what should we do when a baby spits up after eating formula? First of all, we need to clarify what causes the child to spit up. The first thing that we need to do is to find out what causes the baby to spit up. In the process of baby eating milk, we have to prevent the baby from swallowing too much air, so when the baby eats milk powder with a bottle, we must fill the teat with all the milk powder, never because the child is afraid of spitting up and choking on the milk and put the teat flat inside half of the milk powder and half of the air, this situation is easy for the baby to swallow too much air in the process of eating milk, and after eating milk without timely vertical hold patting back burping. The air in the stomach is not discharged in time, which may also lead to vomiting. Secondly, the feeding position is also particularly important. It is generally not recommended that babies lie flat to eat milk, it is recommended that when breastfeeding the mother’s arm, the upper body is tilted at 45 degrees, so that the bottom of the bottle is always higher than the nipple, which can prevent air from entering the nipple. There are some babies whose intestinal tract is not very well developed and who have milk protein allergy and also spit up. For this kind of babies we cannot eat ordinary formula, it is recommended to switch to amino acid formula or deeply hydrolyzed protein formula to treat the child’s milk protein allergy. For formula babies, we must strictly follow the formula tips, water temperature around 40 degrees Celsius, put the water first and then the milk powder, and avoid shaking the bottle violently when dispensing the milk powder to avoid too much air entering, causing the child to inadvertently swallow a lot of air when eating milk, thus causing the phenomenon of vomiting. Finally, when feeding your baby formula, it is best to choose a bottle with an anti-colic design, which can also play a role in preventing spitting up after eating milk. In conclusion, spitting up after eating milk may be related to the baby’s physiological structure, or it may be related to the baby swallowing too much air when eating milk powder, so we should first pay attention to the feeding position when feeding, and secondly, we should pay attention to holding up and burping after each feeding, which can effectively prevent spitting up after eating milk.