Once thought to be conditions only seen in Western nations, both Crohn’s and UC are now found all around the world. New research that examines a century’s worth of global analyses explains the evoluti...

Nature Reviews Gastroenterology & Hepatology, Published online: 13 May 2025; doi:10.1038/s41575-025-01080-wInflammatory bowel disease: classifying global regions by epidemiological stage

Canada is facing a dramatic rise in inflammatory bowel disease over the next two decades, according to a new global study.

An analysis of data from 522 population-based studies encompassing 82 global regions and spanning more than a century (1920–2024) shows spatiotemporal transitions across epidemiologic stages 1 to 3 of...