Firstly, rectal cancer is a malignant tumor of the digestive tract, so after surgery, it is recommended to eat foods that are easy to digest and absorb. Secondly, do not smoke, abstain from alcohol, and avoid spicy and irritating foods. Thirdly, it is advised not to eat indigestible foods, such as bean products and foods that cause gas, and to consume them in smaller quantities. Fourthly, rectal cancer may deplete a large amount of nutrients in the body, coupled with the damage from surgery, so it is essential to ensure a nutrition-rich diet, consume nutritious foods such as soups, easily digestible congee, and high-quality proteins to increase the body's nutrients. Fifthly, attention should be paid to timely adding clothing to avoid catching a cold.