A child’s poop is green, may be related to diet, indigestion, enteritis and so on. 1. Diet: if the child eats more green food, such as spinach, oleaginous vegetables, etc., because the child’s gastrointestinal function is not yet very sound, the green pigment can not be completely absorbed, and green stools will appear. 2. Indigestion: irregular diet and overeating can cause indigestion, resulting in green stools. 3. Enteritis: such as E. coli infection, can change the character of stool, manifested as green stool. Children poop green, may also be related to other reasons, it is recommended to go to the hospital in time to identify the cause, under the guidance of the doctor treatment.