The common causes of green stools in babies are as follows: 1. Overflowing milk and green stools may occur in case of cold and indigestion, and if there is bacterial infection, active treatment is needed. If the laboratory condition is normal, it may be due to indigestion or abdominal cold; 1, when the baby is not full, because of hunger and lead to gastrointestinal peristalsis too fast, so that the bilirubin in the intestine is not yet converted from the stool, the stool performance is green, thin, and fat in the process of digestion consumes less bile, excess bile from the stool, the stool became green. If the mother thinks that the baby eats a lot, more indigestion, you can give the baby some probiotics; 2, eat milk powder containing iron, if you can not fully absorb the iron in the milk powder, the stool will also become yellow or even black, the white particles in the stool is relatively large and easy to have a bad smell; 3, the baby first add pureed vegetables, the stool will often discharge a small amount of green vegetable puree, some mothers often think it is indigestion, stop adding The pureed vegetables, in fact, is a common thing when changing food.