Colonitis is very common in outpatient work, the cause is not very clear, is an immune-damaging disease, colon cancer is found to evolve from the development of colitis, its cancer rate depends on the length of its onset, can be as high as 3% – 43%. Not all colitis will become cancerous, as long as timely treatment to terminate its prolonged development is completely curable, do not worry too much. 1, keep the disease from the mouth off. It is especially important to have a regular diet and to have the right amount of food at the right time. Avoid cold diet and overeating vices, pay attention to abdominal warmth, hand washing before eating, should not be ignored. 2, specifically in the actual life should avoid drinking pure milk to drink sour milk, bananas, grapes, water dates, water pears in fruits. Celery, leeks, cabbage, and groundnuts, fungus, etc. are better to eat less. 3, work and rest in order, the establishment of a normal biological clock. That is, rest on time, do not stay up late, do not lazy bed, peace of mind, adjust the mood, to ensure the quality of sleep is very important. 4, to develop the daily habit of defecation on time, every day after the stool and before going to bed must wash the anus with warm water.