Green stools have nothing to do with hunger and cold, but are mostly related to acute gastroenteritis, indigestion, diet and other factors. 1. Acute gastroenteritis: during the attack, not only will there be nausea, vomiting, abdominal pain, diarrhea and other symptoms, at the same time, the patient’s stool color will also be green, because the patient’s intestinal system will have an imbalance of the flora, harmful bacteria caused by the chemical reaction of the food debris. 2. Indigestion: When indigestion occurs, the intestinal system is unable to absorb the nutrients in the food, and the food residues will be rapidly discharged from the body. Due to the relatively short retention time of the feces in the digestive tract, the bilirubin in the feces is oxidized to bilirubin, and the color of the feces is mainly green. 3. Dietary factors: green food is rich in chlorophyll, and excessive intake of green food will cause green stool color due to the effect of chlorophyll on the stool. If you have green stools, it is recommended to go to the hospital for medical treatment to identify the cause under the guidance of a professional doctor, who will then deal with the cause of the problem.