Inflammatory bowel disease (IBD) mainly comprises ulcerative colitis (UC) and Crohn’s disease (CD). Arthropathies are common extraintestinal manifestations in patients with IBD. Apart from IBD-associated arthropathies, few cases of concomitant IBD and rheumatoid arthritis (RA) have been reported. This article provides a review of concomitant cases of IBD and RA reported in the literature. There were 28 cases of IBD (21 UC cases and 7 CD cases) and RA, excluding cases of drug-induced IBD in patients with RA. Female patients were dominant [71.4% (20/28)]. RA preceded IBD in 23 cases (82.1%), whereas IBD preceded RA in 4 cases (14.3%), and one case (3.6%) was nearly simultaneously diagnosed. In concomitant cases of UC and RA, all cases were pancolitis (60%) or left-sided colitis type (40%) (no cases of proctitis were found), excluding one case whose type of UC was unknown. Although the RA stages according to the Steinbrocker classification varied from stage Ⅰ to Ⅳ, the functional classification of the 8 identified cases were assessed as class Ⅱ. Vital prognosis may be relatively favorable in these concomitant cases.

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