Colitis, or inflammation of the lining tissues of the large intestine (colon), can be caused by infections, loss of blood supply, or chronic diseases. Despite the cause, people suffering from colitis may have typical symptoms that include abdominal pain, cramping, bloating, and diarrhea. Some types of colitis may be associated with bloody diarrhea. Colitis can be part of a disease that affects other parts of the body, causing fever, chills, fatigue, and dehydration symptoms (weakness, decreased urine output). Ulcerative colitis is a chronic condition that has other manifestations in the body, including mouth ulcers, joint swelling, and skin inflammation.