The items for the second review of rectal cancer are blood routine, liver and kidney function, tumor markers, thoracic, abdominal and pelvic enhanced CT and colonoscopy. Rectal cancer refers to the cancer between the dentate line and the rectosigmoid junction, which is one of the most common malignant tumors in the digestive tract. The treatment is usually surgery, radiotherapy and chemotherapy. If the treatment is finished, patients need to review the items common blood routine, which is used to understand the hematopoietic function and whether there is bone marrow suppression after radiotherapy. Liver and kidney function, to know whether chemotherapy drugs have damage to liver, kidney and other organs after chemotherapy. Tumor markers, which indirectly reflect whether tumor cells are proliferating actively in the body. Thoracic, abdominal and pelvic enhancement CT to know whether there is metastasis in other organs and abdominal cavity. Enteroscopy to observe whether there is recurrence or metastasis in the intestinal canal from inside the intestinal tract, etc. If there is rectal cancer that needs to be reviewed, it is recommended to visit the hospital and follow the doctor’s instructions for review.