Fast Five Quiz: Can You Properly Identify Ulcerative Colitis and Initiate Best Treatment?

Marc D. Basson, MD, PhD, MBA; Leyla Ghazi, MD


February 08, 2023

Figure 1. Patient experiencing UC symptoms. Image represents a typical patient presenting with ulcerative colitis.

Of those factors, family history is the most significant for ulcerative colitis. Furthermore, 8%-14% of patients have a family history of IBD and first-degree relatives have four times the risk of developing the disease. The incidence of ulcerative colitis is reported to be higher in Jewish populations than in other ethnic groups.

Most studies do not show any sex predominance. Age of onset follows a bimodal pattern, with a peak at 15-30 years and a smaller one at 55-65 years; however, the disease can occur in people of any age.

The prevalence of ulcerative colitis in nonsmokers or those who recently quit smoking is higher than in current smokers. In addition, appendectomy appears to have a protective effect and has been shown to reduce the risk of developing ulcerative colitis by 69%.

Learn more about ulcerative colitis.


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