Postoperative diet and nutrition of sigmoid colon cancer should pay attention to the following: light diet, more fruits and vegetables, which is favorable to the recovery of postoperative organism as well as the healing of wounds. After the operation of sigmoid colon cancer, the intestinal function is not fully recovered at the initial stage, so after the patient can pass gas and defecation, the patient can be allowed to eat some fluid diet, such as millet soup, fish soup and so on. When starting to eat, you should eat small meals to avoid over-eating and causing indigestion. If there is no abdominal pain, bloating and other uncomfortable symptoms after eating a liquid diet, the patient can gradually eat a semi-liquid diet, such as noodles, porridge, etc. The patient can also eat a small amount of liquid diet. Patients can also eat a little fruit and vegetables, such as tomatoes, seaweed, etc., conducive to postoperative recovery. Postoperative patients can eat more food with high protein content, such as pig’s trotters, etc., which is conducive to wound recovery. All foods should be eaten in moderation, a reasonable diet can be the most effective use of food nutrients, which is conducive to the recovery of the body.