After colon polypectomy, you need to fast for 3 days, then add liquid food, slowly become a regular diet, freshwater fish can be eaten sparingly, not recommended to eat deep-sea fish. Colon polypectomy should pay attention to the following two aspects: 1. In terms of diet, small polyp resection does not need to fast, fluid, semi-fluid food can be, 3-5 days after the resumption of normal diet; large polyps of fasting time for 24 hours, 2-3 days after the entry of fluid, semi-fluid, 1 week after the resumption of a normal diet of less residue can be. After colon polypectomy, when returning to a regular diet, you can eat some freshwater fish, not recommended to eat deep-sea fish. 2. After polypectomy, there will be bleeding, perforation and other complications, after the operation, we should closely observe the color of the stool. If there is blood in the stool, it suggests bleeding from the wound; if abdominal pain occurs after surgery, special attention should be paid to whether there is perforation, and once the above symptoms occur, treatment should be carried out immediately with the surgeon. Diet after colon polypectomy should follow the instructions of professional doctors to avoid aggravating the condition.