Ulcerative Colitis (UC)
UC is a chronic gastrointestinal disorder that involves the rectum and the colon (the large bowel), mainly in the mucosa and submucosa regions of the gut. Unlike CD, this condition is a continuous manifestation restricted to the rectum and the colon, with ulcerations along the mucosa and submucosa. It starts with mild symptoms that gradually progress to severe ones, with periods of remission in between. The most common manifestation of UC is the progressive loosening of stools with blood, accompanied by abdominal pain and occasional fever.