After burping or spitting up, you need to pay attention to whether the baby is overfeeding, cough-induced or gastrointestinal infections caused by disease, pay attention to distinguish between physiological causes or pathological state. 1. Physiological reasons: general babies need to gently burp after drinking milk, otherwise it is easy to man-made patting lead to spitting up; baby stomach is horizontal, small volume, if a feeding too much, crying or shaking, turning the baby after feeding, due to the cardia muscle control is weak, gastric contents are prone to reflux caused by spitting up. 2. Pathological causes: if the baby has respiratory diseases, spitting up should also pay attention to whether it is accompanied by coughing, wheezing, etc.; if there is a digestive disease, it can be manifested as vomiting accompanied by abdominal distension, diarrhea, irritability, etc. If the baby has repeated vomiting, it is easy for the baby to vomit. If the baby has repeated vomiting, easy to choking and suffocation risk, timely medical treatment to avoid adverse consequences, as soon as possible after a clear diagnosis for targeted treatment.