The stomach of an infant is not as well developed as that of an adult. First of all, the stomach is horizontal and the cardia is underdeveloped while the pylorus is more well developed, which can easily cause spitting up or choking due to food reflux. It is recommended to burp immediately after eating milk, for about 25 minutes and then put it down, some children are more anxious to eat milk, this situation is more likely to spit up, it is recommended to eat a few mouthfuls in the middle of pulling out the nipple or pacifier, let the child breathe deeply for a few breaths, change the air, and then eat so that it is also conducive to spit up not so powerful. The main thing is that some children do not have to burp so much after burping, some parents put down after 3 to 4 burps and still end up spitting up milk.