Rectal cancer is cancer between the dentate line and the junction of the rectosigmoid colon, and is one of the most common malignant tumors of the gastrointestinal tract. In recent years, the incidence of rectal cancer is increasing, and it has become the third largest malignant tumor disease that endangers human health. Rectal cancer is generally treated by surgery, but because of its location deep into the pelvis and complex anatomical relationship, surgery is not easy to be complete and the recurrence rate after surgery is high. Its cause is also related to dietary structure, so it is extremely important to pay attention to post-operative dietary health care of rectal cancer. Postoperative diet of rectal cancer 1. 3-4 days of postoperative fasting, such as intestinal peristalsis recovery, can enter the liquid diet, the selected food should be easy to digest and nutritious, such as vegetable soup, rice soup, lotus root powder, etc.. It is best to eat less and more meals, once every 2 to 3 hours, 6 to 7 meals per day. 2.After one week, you can eat a semi-liquid diet, choosing foods rich in protein and low in fiber, such as noodles, thin rice, wontons, etc. You should also eat a small number of meals, 5 to 6 meals per day. 3.After two weeks, you can eat easy to digest less residue universal food, forbidden to eat coarse grains and vegetables with more fiber, such as celery, etc., to reduce the burden of the intestine. 4, patients should eat a balanced diet rich in nutrients that is easy to digest after discharge, live a regular diet, usually pay attention to dietary hygiene, do not eat raw, cold, hard, fried, pickled food, avoid smoking and alcohol, and develop a good habit of regular bowel movements. Most foods can be consumed, diet should be rich, meat and vegetables, a comprehensive diet is a healthy diet, do not have to overemphasize the high nutrition diet, but the appropriate intake is possible. You can eat more fruits appropriately. In case of patients receiving intestinal anastomosis (not rerouted), be careful not to eat the seeds of the fruit to avoid the effect on the growth of the anastomosis. In case of patients with stoma, they have to figure out the rules of eating by themselves, because the defecation habits of each person eating are not quite the same, even before and after the same artificial mouth. Post-operative dietary considerations for rectal cancer 1. Patients with rectal cancer have recurrent and persistent diarrhea and weak digestive ability, so they should be given food that is easy to digest and absorb. 2.Patients with rectal cancer mostly have blood in stool, and late stage patients often have a lot of blood in stool, so they should take less or no stimulating and spicy food. 3.Patients with prolonged diarrhea or advanced patients with long-term fever and sweating should drink more water or soup, and the main food can be semi-liquid diet such as porridge and noodles. 4.Patients mostly have symptoms such as loss of appetite, nausea and even vomiting, so it is appropriate to take light diet and avoid greasy diet. 5.Patients with advanced rectal cancer have prolonged diarrhea, blood in stool, fever, loss of nutrients and water, loss of body weight and weight loss, so it is appropriate to take nutritious tonic juice diet. In addition, the early resumption of physical activities (such as limb exercises in bed) after surgery is beneficial to promote the recovery of intestinal function, prevent urinary retention and deep vein thrombosis of lower limbs, but should not be rushed. In the early postoperative period, you can participate in activities with little exercise such as jogging and tai chi, and then start to exercise as usual after your physical strength has fully recovered, but generally you should not do strenuous exercises. Physical activities are not only beneficial to patients’ physical recovery, but also can help patients rebuild their self-confidence and keep their mood happy, thus improving the anti-tumor ability of their own body.