2, postoperative care ① Radical resection of colon cancer is general anesthesia. Postoperative patients should lie flat during unconsciousness, keep the respiratory tract unobstructed, give oxygen inhalation and ECG monitoring, and closely observe the changes of patients' consciousness, pupil, heart rate, breathing and blood pressure. The condition was stable, and the patient was changed to semi-recumbent position 6 hours after blood pressure stabilized. ② Record 24-hour inflow and outflow. (3) assist in taking a comfortable position after anesthesia; Adequate analgesia can reduce the stress response and anxiety of patients; Monitor whether there is electrolyte and acid-base imbalance, and replenish the required water; ④ Keep the abdominal drainage tube unobstructed, observe and record the nature and quantity of drainage fluid, and report to the doctor in time if there is any abnormality. ⑤ Closely observe the exudation of wound dressing and observe whether there is abdominal distension; ⑥ Do a good job of nursing indwelling catheter. ⑦ Eating early after operation is beneficial to increase the intestinal blood flow and peristalsis, and to the recovery of intestinal tract and physical strength. Generally, after the intestinal peristalsis recovered 3 days after operation, you can eat liquid to observe the recovery of gastrointestinal function, and then you can eat semi-liquid to ordinary rice according to the doctor's advice. Early exercise can promote the recovery of gastrointestinal function and reduce the occurrence of deep venous thrombosis of lower limbs. If there are no special circumstances, you can usually get out of bed the next day, and the amount of exercise should be gradual.