Green stools may be caused by dietary factors, indigestion, acute enteritis and other reasons. 1. Dietary factors: Due to eating too much green leafy vegetables, such as spinach, celery, oleaginous vegetables, etc., which contain high chlorophyll, so the situation of green stools can occur. 2. Indigestion: due to poor dietary habits and other reasons leading to indigestion, food accumulation and fermentation in the body to produce acid, which phenolics will produce oxidative reactions outside the body, thus making the stool green. 3. Acute enteritis: mostly due to abdominal cold or dietary impurity and other reasons, the stool in the intestinal tract retention time is too long, the nature of the acidic, and at the same time in the intestinal bacterial flora, part of the bilirubin can be converted to bilirubin, discharged green stool. If the green stools are not caused by dietary factors, you should go to the hospital in time and ask the doctor to clarify the cause and standardize the treatment.