IBD and SIBO: Crohn's Disease, Ulcerative Colitis & Structural Risk Discover how Inflammatory Bowel Disease (IBD)—including Crohn's and ulcerative colitis—increases SIBO risk through structural changes, surgery, and immune dysregulation. Sep 20, 2026 14 min read #ibd #crohns #ulcerative-colitis #inflammation #root-causes