Infants who spit up frequently can be burped after eating and the upper body elevated appropriately. Frequent spitting up needs to be alert to the possibility of pneumonia. If there is no relief from the above methods, it may be caused by bronchopneumonia, etc., and you should consult a doctor promptly. 1. Physiological reasons: because the baby’s pancreatic sphincter is not mature enough, it is easy to spit up after eating too much. Don’t let the baby eat too much, you can feed on demand, try to pick up the baby after feeding, gently pat the back burp, spit out the air can be effective in relieving spitting up, you can also raise the baby’s upper body, using the effect of gravity to reduce reflux. 2. Pathological reasons: bronchopneumonia can have spit milk choking mouth spitting bubbles, shortness of breath and other manifestations. At this time, we should first treat bronchopneumonia. In addition, if projectile vomiting occurs to consider intracranial infection intracranial hypertension, need to immediately consult the doctor to clarify the cause of the disease.