There are significant differences in IBD subtypes and serologic markers among racial/ ethnic groups with IBD in the United States.

A substantial number of patients with inflammatory bowel disease (IBD) will manifest extra-intestinal complications. Metabolic bone disease and arthropathies are among the most debilitating of these. Decreased bone mineral density and increased fracture risk may occur in relation to the underlying disease itself or result from vitamin, mineral, and hormonal deficiencies; medications used to treat the underlying disease; lifestyle; and perhaps other factors. In many cases, the factors remain unidentified. Options for the treating clinician include correction of these deficiencies, treatment of the underlying disease, and use of medication to promote bone formation and decrease bone resorption.