Colorectal cancer is a hot issue of global concern. In recent years, when most scholars study the influence of environment on colorectal cancer, they found that society, culture, lifestyle and dietary habits have certain relationship with the development of colorectal cancer, and among them, dietary and nutritional factors have a greater influence on the incidence of colorectal cancer, which is mostly related to the intake of high-fat red meat and less plant fiber. The nutritional effect of diet on human body is well known, but certain diseases are not suitable to consume certain kinds of corresponding food, such as diabetes avoid sugar, cholecystitis avoid greasy, hypertension, kidney disease avoid salt, etc. With people’s focus on diet, more and more people think that for bowel cancer, they should also abstain from eating or avoid eating certain food, and there are also many traditional Chinese medicine practitioners and oncologists who talk about the bowel cancer should abstain from eating “hairy food”. There are also many Chinese medicine practitioners and tumor experts talking about “hairy food” should be avoided for bowel cancer. However, what is “hairy food” for bowel cancer? Should we quit eating or avoid eating certain foods for bowel cancer? 1.What is “hairy food”? The word “hairy substance” originates from the folk saying, which has not been recognized by modern science, therefore, the exact concept cannot be found. According to the more common saying in Chinese medicine, it refers to certain foods that can aggravate the disease or induce the attack of the disease. Mainly include: aquatic products in the fish, shrimp, crab and sea cucumbers, etc., animal meat chicken, sheep, dogs and donkeys, vegetables in the leeks, mushrooms, celery, etc., these foods from the Chinese medicine point of view of fat, sweet, warm, thick, dry and stimulating, eating more help to generate “fire” (specific reference can be made to the “Suwen – heat disease theory” and “Compendium of Materia Medica”). It should be reminded that although “hairy food” can cause or aggravate certain diseases, it is only for allergic diseases and diseases related to sores, ulcers and poisons. Bowel cancer does not belong to one of these two diseases. 2. Should we quit “hairy food” for bowel cancer? Bowel cancer is a systemic disease, patients often have neuroendocrine dysfunction, especially after receiving chemotherapy, the immune function of the body is in a state of stress, and at the same time, the immune function is low, accompanied by loss of appetite and dysfunction of digestion and excretion. At this time, if they drink strong alcohol, eat shrimps and crabs, and eat sweet and sweet, they are prone to have perverse reaction to stimulating food or heterogeneous proteins, and suffer from fever and abdominal pain, loss of appetite, etc. The “hairy things” that should be abstained from here are “hairy things”, which are only used for the diseases related to ulcers and poisons. Here should quit the “hairy things” mainly refers to: tobacco, alcohol, stewed dog meat and mutton and other excessively oily food, barbecue and other hot and fatty, easy to cause gastrointestinal dysfunction of the food. Some patients will expand the scope of “hairy food” arbitrarily, and attribute fish, chicken and duck as the hairy food that leads to recurrence and metastasis of intestinal cancer, and often worry about “opening the mouth” and “choking on food”. In fact, the United States and other Western countries, the main raw material of food to chicken and eggs; China’s northwest region mainly into eating beef and mutton; Japanese people eat sashimi and other seafood food. If the above food is easy to cause recurrence and metastasis, then the treatment effect of this part of the population is poorer; but in fact, the survival time of this part of the population after the operation is not different from ours, so there is no scientific basis for the statement that “hairy food” leads to recurrence and metastasis, and this statement has not been reported in the official journals and academic papers both at home and abroad. On the contrary, as bowel cancer patients have obvious nutritional disorders and wasting in the late stage, this has a greater impact on the prognosis of patients’ recovery. Fish, chicken and other “hairy things” can provide high quality protein and vitamins needed by human body and easy to be absorbed, which is of positive significance to promote the recovery of the body. Bowel cancer diet should pay attention to the nutrition of bowel cancer patients, which can help promote the recovery of the body. For the diet of patients with intestinal cancer, it should be emphasized that: 1) fresh food should be taken; 2) recipes should not be too simple and should focus on the balance of nutrients; 3) there must be multiple and appropriate amount of animal proteins or milk to satisfy the body’s need for essential amino acids; 4) more vegetables and fruits, and foods containing vitamins and plant fibers should be eaten; 5) obesity should be avoided, and less fats, alcoholic beverages, salted, smoked and grilled foods should be eaten. If these “hairy things” are rejected, it is likely to make the body weaker and affect the late treatment of intestinal cancer.