Bowel cancer has symptoms such as change of bowel habit, abdominal pain, abnormal feces and so on, which need to be treated in time. 1. Change of bowel habit: it is the first symptom of bowel cancer, patients may have more frequent bowel movements, diarrhea and so on. 2. Abdominal pain: the presence of tumor may cause narrowing of intestinal lumen, resulting in intestinal obstruction, which may lead to abdominal pain, abdominal distension and so on. 3. Fecal abnormality: due to the stimulation of tumor, the environment of intestinal tract will be changed, and patients may have mucus stool, blood stool and other abnormalities. Bowel cancer patients are mainly treated by surgery. In daily life, they should have a light diet, avoid spicy and stimulating food, keep the bowel smooth, eat more fresh fruits and vegetables, and consult doctor in time when abnormal situation occurs.