Newborns often spit up, may be due to physiological or pathological factors, physiological factors such as improper feeding; pathological factors such as infections and other diseases, can cause infants often spit up. 1. Physiological factors such as: newborn babies, the anatomical structure of the stomach is special, the whole stomach is horizontal, and the capacity is small, when feeding too fast or too much, it is easy to spit up the phenomenon; in addition, when the baby’s stomach has gas, also not conducive to feeding, prone to spit up the milk. 2. Pathological factors: there are a variety of diseases that can cause infants to spit up pathologically, such as upper respiratory infections, pneumonia, esophageal atresia, etc., so that the infant’s digestive function is abnormal, causing abnormal spitting up. Newborns often spit up, there may be other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.