Certain antibiotics, such as ampicillin, have a higher propensity to create an environment where the bacteria causing pseudomembranous colitis can outcompete the normal gut flora.
Ischemic colitis has a distinctive endoscopic appearance; endoscopy can also facilitate alternate diagnoses such as infection or inflammatory bowel disease.
There have been few studies to investigate such an association, but one study showed no association of refined sugar on the prevalence of ulcerative colitis.
Although uncommon in the general population, ischemic colitis occurs with greater frequency in the elderly, and is the most common form of bowel ischemia.
