Chronic colitis has a long course and is an inflammation of the colonic mucosa due to a variety of causes, with inflammation often involving the sigmoid colon and rectum. Diarrhea is the most common symptom of colitis and is manifested by an increase in the number of bowel movements, which may range from 2-4 times per day in mild cases to more than 10 times per day in severe cases. The nature of the stool varies from dilute watery stool, mucus stool, pus and blood stool to blood stool, depending on the degree of mucosal lesions, and the number of stools also varies, ranging from one to dozens of times a day. Chronic colitis can also present with varying degrees of abdominal pain, usually located in the lower abdomen, especially the left lower abdomen, with varying degrees of pain, which usually disappears after defecation. Other symptoms may include loss of appetite, nausea and vomiting, abdominal distension, wasting, and weakness, etc. It can also be complicated by other systemic diseases. If the lesion involves the rectum, there may be a feeling of urgency. For the management of colitis, life should give up bad eating habits, eat less and more meals, prohibit smoking and alcohol, prohibit the consumption of spicy and stimulating food, do not eat cold and greasy food, diet is light, high protein, high calorie, eat slowly and chew, pay attention to dietary hygiene. The actual fact is that you can find a lot of people who have been in the business for a long time. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things.