After combined abdominoperineal resection (Miles procedure) for patients with low rectal cancer, the original normal physiological defecation mode is changed, and an artificial anus is required for life. For some colon cancer patients, intraoperative stage I bowel anastomosis is more risky, so intestinal rerouting is needed first, and then intestinal stage II anastomosis is performed about six months after the first operation. For patients with low rectal cancer and colon cancer with intestinal diversion, postoperative stoma care is especially important. Diet: Inform patients and family members that in principle, there is no need to avoid eating. Eat more fresh vegetables and fruits and less irritating or flatulent food. If possible, drink 1~2 cups of sour milk daily to regulate the intestinal flora. For each new food, it is best not to eat too much for the first time, and gradually increase the amount only after no adverse reaction. When the stool volume is low, you can eat more fiber-rich foods. Also pay attention to dietary hygiene to prevent diarrhea. Bathing: Patients can usually bathe once the skin at the stoma has healed. It is best to use a neutral, fragrance-free bathing gel. After washing, dry the stoma skin and replace it with a new stoma bag. Treatment of common complications: Common complications of postoperative colorectal cancer stoma include stoma bleeding, peristoma dermatosis, stoma stenosis, stoma hernia, etc. When the stoma bleeds, topical Yunnan Baiyao can be applied, and dry paper can be used to wipe the stoma mucosa as much as possible, and water can be used to wash it if necessary. Peristoma dermatosis is mostly caused by stimulation of local skin by fecal overflow or allergy between the surrounding skin and the stoma bag. The skin rash, ulcers and redness of the stoma are the most common. In this case, the skin around the stoma should be thoroughly cleaned, and zinc oxide ointment or Ruyi Jinhuang San should be applied externally, or petroleum jelly gauze can be used to cover the skin at the stoma. At the same time, use the stoma bag correctly to avoid leakage of excrement. The common cause of stoma stenosis is stoma stenosis caused by stoma colonic plagiocele or scarring due to incision infection. Mild stenosis can be solved by finger dilatation of the stoma by putting on gloves and using a finger of suitable thickness according to the degree of stoma stenosis, slowly reaching into the stoma about 4-5 cm for 15-20 minutes each time, 1-2 times a day, and insisting that the stenosis can be effectively relieved for about 2 months. In addition, patients can open their mouths and breathe to prevent the increase of abdominal pressure. For stenosis caused by scar hyperplasia or stoma stenosis that is ineffective by the above methods, it is recommended to go to the hospital in time to avoid delaying the disease. Parastomal hernia is most often seen in elderly patients and is caused by a weakening of the abdominal wall and a continuous increase in abdominal pressure. The initial manifestation of the disease is a peristoma mass, which gradually increases in size and appears when standing, walking or coughing, and disappears when the mass is returned to the abdominal cavity in a lying position or by hand. The swelling impact sensation can be felt when pressing the mass with the hand and coughing. In the early stage of the disease, if the symptoms are mild, an elastic bandage can be applied to the abdomen to reduce the symptoms of organ herniation. If the symptoms continue to progress, the patient should be promptly seen in the hospital.