Arterial and venous thromboembolisms have long been associated with inflammatory bowel disease (IBD) and can cause significant morbidity and mortality. We present a patient with aortic arch thrombosis embolizing to the left lower extremity during hospitalization for active ulcerative colitis (UC). The limb was preserved following emergent embolectomy. Thrombophilia was attributed to UC, as hypercoagulable testing was negative. IBD is certainly a hypercoagulable state, and aggressive thromboembolism prevention should be considered for hospitalized patients with active disease. © 2010 by The Southern Medical Association.