Baby vomiting after eating, probably divided into the following cases: 1, gastrointestinal type of cold. If the baby has a small cold, often the first symptom is not coughing, sneezing, but mainly vomiting, diarrhea, called gastrointestinal type of cold. 2, acute gastroenteritis, may be caused by infections, but also may be the baby ate too much, too much caused. If it is a gastrointestinal type of cold, acute gastroenteritis, parents need to take the baby to the pediatric clinic to check the blood routine. If there are diarrhea symptoms, then check the stool routine and rotavirus, and then for the cause of treatment. If the baby has vomiting, the first thing to do is to stop the vomiting, which can be done by taking anti-emetic injection or oral anti-emetic drugs. Babies who vomit excessively, with symptoms of dehydration such as low urine output and thirst, need intravenous rehydration to correct the dehydration, which will require intravenous fluids in the hospital, and outpatient or inpatient treatment depending on the situation.