If a child who eats milk powder has green stools, it is mainly considered to be caused by the following reasons. Firstly, it is a symptom of diarrhea, if children have milk protein intolerance to milk powder, it will often cause an increase in the number of stools and stools of dilute nature, some children’s stools are green in color, and need to apply hydrolyzed protein milk powder or amino acid milk powder in a timely manner. Secondly, it is normal that some children’s milk powder is added with iron, and after eating this kind of milk powder, the stools will be green and dark in color. As long as the child is in good spirits, has no vomiting, abdominal pain, diarrhea, and has normal weight gain, there is no need for treatment.