The baby drink milk powder on spitting may be physiological reasons, lactose intolerance, intestinal obstruction and other reasons. 1. Physiological reasons: the child cardia development is incomplete, and the stomach capacity is small, breastfeeding too fast or a feed more will lead to spit up, parents should change the feeding method, a small number of times to the baby feed. 2. Lactose intolerance: the baby due to the lack of lactase enzyme in the consumption of milk powder containing lactose lactose intolerance, resulting in gastrointestinal tract irritation, resulting in the baby drinking milk powder on the phenomenon of vomiting, the baby should be replaced in a timely manner for the lactose-free milk powder. 3. Intestinal obstruction: such as intussusception, intestinal stenosis, etc. will cause obstruction of the digestive tract, the baby eating milk in the gastrointestinal tract stagnation will lead to frequent spitting. The baby drink milk powder on the vomit should go to the hospital in time to improve the examination, clear cause to give targeted treatment.