The dark green color of stool after intestinal polyp removal may be caused by dietary factors, indigestion, drug effects and other factors. 1. Dietary factors: after the intestinal polyp resection surgery, after the resumption of the diet needs to be light and easy to digest, after eating spinach, green leafy vegetables, due to the ingestion of more green pigment, while poor digestion, resulting in dark green stool. 2. Dyspepsia: after the resection of intestinal polyps, due to the impact of disease and surgery, intestinal flora disorders, resulting in intestinal inflammation, which can lead to intestinal dysfunction or not yet return to normal, which can lead to the performance of dark green stools, but also accompanied by diarrhea, flatulence, nausea, abdominal pain and other uncomfortable symptoms. 3. The influence of drugs: after the application of certain drugs after polypectomy, such as ferrous sulfate tablets and so on, may lead to the emergence of dark green stools, you need to inform the specialist to clarify the use of drugs. Intestinal polyp resection after dark green stools should be timely consultation, clear diagnosis and follow the doctor’s instructions for treatment or disposal.