Colitis: 5 Types, Diagnosis, Treatment, Diet

What does colitis mean? Colitis is simply an inflammation of the colon (a part of the large intestine). It results in discomfort in the abdomen. Usually, colitis can be acute and chronic (reoccurring) or mild and severe. Colitis is usually characterized by diarrhea, bloating, abdominal pain, and blood in the stool.