Colon cancer can be done colonoscopy half a year after surgery. First of all, we must know that the entire colon of colon cancer is bounded by the middle of the transverse colon and is divided into two parts, the right and left colons. The clinical manifestations of these two cancers are different. Right colon cancer, the right colon cavity is thick, and the stool in the intestine is liquid. The cancer in this section of the intestine is mostly ulcerative or cauliflower-shaped cancer that protrudes into the intestinal cavity.

But these cancers often break Bleeding, secondary infection, accompanied by toxin absorption, so it may have clinical manifestations of abdominal pain and discomfort, ambassador changes, abdominal mass, anemia, weight loss, or cachexia; cancer of the left colon, the small intestinal cavity of the left colon, the intestine Feces become hardened by the absorption of water. Most of the left colon cancer is infiltrative type, often causing annular stenosis, so the clinical manifestations are mainly acute and chronic intestinal obstruction. The volume of the mass is small, with little rupture and bleeding, and no toxin absorption, so anemia is rare.

　　Colon cancer is a malignant tumor. According to the postoperative pathology, adjuvant chemotherapy is recommended after this operation. During chemotherapy, a full review every two to three cycles is required to evaluate the effect of chemotherapy. At present, the patient recommends routine blood tests, liver and kidney function, tumor markers, complete chest CT abdominal MRI, bone scan once a year, and head MRI once a year. Of course, if problems are found, check in time. If necessary, it can be combined with colonoscopy. It is recommended to perform routine blood tests, liver and kidney function, tumor markers, improve chest CT abdominal magnetic resonance examination, bone scan once a year, and head magnetic resonance once a year. Of course, if problems are found, check in time. If necessary, it can be combined with colonoscopy.

　　At the same time, there are corresponding precautions before colonoscopy:

　　 1. Smoking is prohibited the day before the inspection.

　　 2. To be accompanied by adult relatives and friends, remove the dentures before surgery, and the lady will apply makeup. (Gastroscope)

　　 3. Eating two days before the inspection, it is easy to digest a semi-liquid diet such as porridge, and fast food containing crude fiber.

　　4. Check the liquid diet such as rice soup, milk, soy milk, etc. the day before the inspection, and fast on the day of the inspection.

　　 5. Fast and spicy foods within 24 hours after the inspection, and no drinking within 12 hours.

　　 6. Do not drive motor vehicles, carry out mechanical operations and engage in high-altitude operations within 24 hours after the inspection.