Bowel cancer usually takes 5-6 years, or even more than 10 years to form, it belongs to the slow evolutionary process, mainly due to the long-term chronic inflammatory stimulation caused by polyps, polyps and then induce intestinal cancer, so it mostly occurs in middle-aged and old-aged patients. Clinically, when the number of bowel movements increases, there is mucus in the bowel movements or there is a change in bowel movements, you should go to the anorectal department of the hospital as soon as possible to do a colonoscopy to see if there is an intestinal tumor. If it is simply intestinal polyps, for this case should also pay attention to, as soon as possible to take surgery to remove polyps, postoperative anti-inflammatory, hemostatic treatment, and then regular review colonoscopy, to avoid recurrence of polyps, so as to avoid intestinal cancer. At the same time, in terms of diet, avoid eating pickled or spicy food.