Spitting up is a relatively common symptom, and many children will appear. The specific reasons are as follows: 1, incomplete development of the cardia: small infants, the stomach in the process of development is transverse, if feeding, put the child down at once, the stomach may fall upward, the cardia is not well developed, easy to spit up, which is a relatively common reason; 2, digestive function: if digestion is not good, often also easy to cause digestive manifestations, first of all, the spit up manifestations; 3, Other reasons: there are some children due to other reasons, including respiratory tract infections, upper and lower respiratory tract infections, some children in the case of phlegm is also easy to spit up. Therefore, if the patient has fever and obvious spitting up, go to the hospital to rule out neurological manifestations. In addition, if there is no physical problems, just the presence of spitting up, pay attention to the time of feeding, is not the bottle or nipple problems, that is, the amount of milk out of the speed is too fast, can also cause children to spit up, overfeeding will also be spit up phenomenon. So pay attention to the above aspects, one by one to eliminate the causes. If you have already paid attention to the above factors, but still can not solve the case, you should bring the baby to the hospital to check. At the same time, you can also use probiotic digestive drugs, if not relieved, then do further diagnosis and treatment.