New cases of inflammatory bowel disease (Crohn's disease and ulcerative colitis together) worldwide, 2021

375140

new cases per year, worldwide

“As shown in Table 1 , the global incident cases of IBD were 375140 (95%UI, 327686–436925) in 2021.”

International Journal of Colorectal Disease 2024, Global, regional, and national burden of inflammatory bowel disease, 1990-2021 (GBD 2021), 2024-09

Kind of source

Peer-reviewed study

Read on

2026-11-06

Daily check

Quote found at the source on 2026-11-06

What to know

GBD reports Crohn's disease and ulcerative colitis together as IBD, so this applies to both. GBD 2021 modelled estimate.

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Crohn's diseaseUlcerative colitis