Ulcerative Colitis (UC) is an Inflammatory Bowel Disease that causes lasting inflammation and ulcers (sores) in the digestive tract. UC affects the deeper lining of the large intestine (colon) and rectum. Usually, symptoms do not appear suddenly but do so over time.

UC can be debilitating and sometimes cause complications that can be life-threatening. Although a cure is yet to be found, the treatment can greatly reduce the signs and symptoms of the disease and even cause long-term remission.

The symptoms related to UC can be urgency to defecate and incontinence, tenesmus (incomplete emptying sensation), increased frequency of bowel movements, mucus in the stool, night defecation, flatulence, abdominal pain and blood in the stool.

Doctors usually classify UC according to where it occurs. The types of UC are: