To determine whether an infant is vomiting due to food accumulation or catching a cold, it is mainly determined by the accompanying symptoms, such as food accumulation may have symptoms such as bad breath, and catching a cold may have symptoms such as vomiting. 1. Accumulation of food: Vomiting caused by accumulation of food in infants is mainly due to the weakening of intestinal and gastrointestinal dynamics, which leads to the inability to reach the small intestine, and after accumulating to a certain extent, the symptom of vomiting will occur, and it is often accompanied by abdominal distension, bad breath, poor mental state and other reactions. 2. Cold: Cold causes vomiting mainly because of the invasion of bacterial or viral infections, in addition to the phenomenon of vomiting, but also accompanied by diarrhea, fever, nausea, intestinal sounds active and so on. Parents who find that their babies are vomiting are advised to go to the hospital in time for a relevant examination to clarify the cause of the disease and then actively treat the symptoms.