Baby spit yellow milk is how to return a responsibility

First, physiological reasons, the baby's stomach is not like a big child and adults vertical downward, but horizontal position, so that the stomach capacity becomes smaller, store less food, in addition, because the baby esophageal muscle tension is relatively low, cardia is relatively loose, closed not tight, so it is easy to be broken by food, resulting in vomiting milk, physiological vomiting milk, etc. After the baby grows up a little bit, the stomach hangs down, the nervous regulation function of intestinal motility and the secretion of gastric acid and protein decomposition function gradually increase, So you don't spit. Pathological causes: Colds, bacterial infections, constipation, pyloric stenosis, esophageal atresia, intestinal atresia, intestinal malrotation, congenital megacolon, etc. Third, improper feeding, improper feeding posture, too fast feeding, too much milk or too short a time between meals, too many children when feeding, too early to add complementary food, will show this phenomenon.