The exact incidence of<unk>  is difficult to estimate, as many patients with mild<unk>  may not seek medical attention.<unk>  is responsible for about 1 in 2000 hospital admissions and is seen on about 1 in 100 endoscopies. Men and women are affected equally;<unk>  is a disease of the elderly, with more than 90% of cases occurring in people over the age of 60.
Ischemic colitis
Ulcerative colitis
Diversion colitis
Chemical colitis
Collagenous colitis
Cytomegalovirus colitis
Microscopic colitis
Diverticulitis