Diarrhea after removal of colon polyps may be normal, or it may be caused by wound infection, gastrointestinal dysfunction, intestinal flora imbalance, etc., which is not normal in such cases. Before doing colonoscopy need to eat laxatives, some patients will still have diarrhea symptoms for a short time after the end of colonoscopy, can be improved by themselves, such cases are normal reaction. Or maybe not pay attention to dietary care after the operation, eat spicy stimulating food, will cause gastrointestinal peristalsis abnormality, which will lead to the occurrence of diarrhea. In addition, improper postoperative care leads to bacterial infection of the wound site, causing intestinal inflammation, abdominal pain, diarrhea and other symptoms. Polypectomy itself, trauma, emotions and other factors may cause intestinal flora imbalance, followed by diarrhea. Caused by the above situation is not a normal phenomenon. When diarrhea after colon polypectomy occurs, it is recommended to go to the hospital if the symptoms are not relieved.