Babies love spitting up is usually related to physiological factors such as the stomach is not yet developed, or pathological factors such as gastrointestinal diseases and improper feeding and other factors. 1. Physiological factors: because the capacity of the baby’s stomach is relatively small, the storage of food is relatively small, coupled with the baby’s esophageal muscle tone is relatively low, the cardia muscle development is relatively flaccid, the mouth is relatively shallow, so the baby loves to spit up milk. 2. Pathological factors: digestive tract deformities, intestinal infections and respiratory tract infections can also lead to babies love spitting up. 3. Improper feeding: If you give your baby a bad position when breastfeeding or your baby eats too fast and your baby cries, it can also lead to spitting up. If your baby’s spitting up symptoms are severe, or if they don’t get better, you should go to the hospital in time for treatment.