Extraintestinal Manifestations (EIMs) of Inflammatory Bowel Diseases (IBD) are a frequent feature of disease, occurring in 25-40% of patients with IBD. While associations with IBD type, gender, and age at diagnosis are known, less is known about the associations between different EIMs and which patients are most likely to develop more than 1 EIM. The goal of our study was to better characterize which patients may be at higher risk of developing multiple EIMs.