Chronic colitis without diarrhea, but the constant presence of abdominal pain symptoms, may suggest an acute attack of chronic colitis, may also suggest the occurrence of perforation and other complications, when the condition is more serious, need to pay attention. Chronic colitis is a chronic, recurrent, multiple, due to a variety of pathogenic causes of intestinal inflammatory edema, ulceration, hemorrhagic lesions, abdominal pain, diarrhea as the main feature, mucus stool, constipation or diarrhea alternately occurring, sometimes good and sometimes bad, lingering. Chronic colitis is often manifested as intermittent abdominal pain, but if severe abdominal pain occurs every day, or persistent abdominal pain, it may suggest an acute attack of chronic colitis, when complicated by intestinal perforation, obstruction, etc. can also be manifested as persistent abdominal pain, at this time the condition is more serious, and should be promptly sought medical treatment, early intervention under the guidance of a medical professional.