Generally, babies within 6-8 months of age have a lot of air in the stomach after feeding, and burping can expel the air and reduce the phenomenon of milk overflow. If spitting up still occurs frequently after burping, it is necessary to pay attention to the possibility of pathological disorders, such as congenital pyloric stenosis or hypertrophy, most commonly found in babies around 20 days after birth, frequent spitting up, which occurs every time after eating, after burping is ineffective, and the physical development of the body lags behind, the sense of hunger is more obvious, you can carry out an ultrasound examination of the abdomen to make it clear, and if necessary, surgical treatment. In addition, dyspepsia is also prone to spitting up, and most of them are accompanied by stool abnormalities, which can be treated by promoting digestion if necessary.