Colon polypectomy 7 days dizziness may be due to anemia, insufficient blood supply to the brain, malnutrition and other reasons, the specific situation need to go to the hospital in time to go to the examination to confirm. 1. Ischemic anemia: bleeding may occur after the removal of colon polyps, if the bleeding time is longer, more bleeding, may cause the phenomenon of ischemic anemia, which leads to the symptoms of dizziness 7 days after the removal of colon polyps. 2. Insufficient blood supply to the brain: when bleeding occurs after colon polypectomy, and due to the lack of activity, the blood in the brain is insufficient, the circulation speed is slow, so that the brain is in ischemia, lack of oxygen phenomenon, manifested in the symptoms of dizziness after 7 days of colon polypectomy. 3. malnutrition: after the removal of colon polyps mainly to liquid diet, if you can not supplement the body in time the nutrients needed, so that the body is in a state of malnutrition, will lead to the symptoms of dizziness 7 days after the removal of colon polyps. It is recommended to go to the hospital in time for examination and diagnosis, to clarify the cause of the disease, and to carry out targeted treatment as soon as possible.