The seriousness of the baby’s spitting up may be related to improper feeding, cold abdomen, gastrointestinal tract infection and other factors. 1. Improper feeding: If you don’t feed your child correctly, he or she will swallow a lot of air because he or she is too hungry and will swallow milk too fast and too quickly, especially if you don’t burp him or her, which can easily lead to severe spitting up. 2. Abdominal cold: the baby is still relatively small, very susceptible to external factors, if you do not pay attention to the warmth of the abdomen, it is likely to have abdominal cold, and then there will be gastric distension and gastric peristalsis accelerated phenomenon, so at this time there will be obvious abdominal pain, abdominal distension and spitting up serious performance. 3. gastrointestinal tract infection: baby spit up serious, also does not rule out and outside pathogens infection factors, such as gastrointestinal tract by viral, bacterial infection, it is easy to cause vomiting serious symptoms. The baby is likely to have other reasons for spitting up, need to cooperate with the doctor as soon as possible to clarify the cause and then do targeted treatment and treatment.