Distinguishing between vomiting and spitting up in babies can be done in terms of frequency and etiology. The frequency of spitting up is low, the frequency of vomiting is high, the cause of spitting up is overfeeding, etc., and vomiting may be caused by infection. Most babies spit up due to normal physiological phenomena, the vast majority of babies vomit belongs to pathological causes. 1. Frequency: baby spit up generally occurs after breastfeeding, mostly due to cold, parents feeding improperly caused by the frequency of vomiting is not particularly high; baby vomiting can occur at any time, the more serious can be caused by frequent vomiting or more than vomiting, projectile vomiting and so on. 2. Etiology: Most babies spit up due to overfeeding, improper parental care caused by cold and other reasons; most babies vomit due to bacterial, viral enteritis, respiratory tract inflammatory infections, intestinal obstruction, meningitis and other causes. Baby vomiting or spitting up, you need to take your child to the hospital in time, by the physician detailed examination to further determine, you can not just indiscriminate use of drugs.