Spitting up can be caused by cold, but there are many reasons why babies spit up, and not all of them are caused by cold. For example, improper feeding, indigestion, eating too much, too fast, etc. can cause this phenomenon. 1, the baby’s digestive system is not like adults, the stomach is not very well developed, the baby’s stomach is horizontal, eat too much or digestion is not good, lying down is prone to vomiting. 2, the baby’s abdomen is cold, there will also be vomiting and diarrhea symptoms. 3.The child may spit up after sucking milk due to incorrect posture or inhaling too much gas from the bottle during feeding. 4. Other diseases such as cold, fever, acute gastroenteritis, etc. may cause vomiting. If you find that your baby is spitting up frequently, you need to carefully observe whether there are other symptoms, such as depression, runny nose, cough, etc. You should analyze the reasons for spitting up and not simply think that it is due to cold. You should pay more attention to keeping your child warm and not letting him/her get cold, and pay attention to feeding him/her more warm water.