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Inflammatory bowel disease (IBD)
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    Inflammatory Bowel Disease (IBD)

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    Inflammatory Bowel Disease (IBD) is a broad term that describes conditions characterized by chronic inflammation of the gastrointestinal tract. The two most common inflammatory bowel diseases are Crohn’s disease and ulcerative colitis.

    What Is IBD?
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    Explore IBD Basics
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    Learn about IBD studies conducted by CDC scientists
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    Check out CDC’s IBD projects with external partners
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    Get answers to frequently asked questions about IBD
    Featured Resources
    • Crohn’s & Colitis Foundation: What is Crohn’s Disease?
    • Crohn’s & Colitis Foundation: What is Ulcerative Colitis?
    • National Institute of Diabetes and Digestive and Kidney Diseases- Crohn’s Disease
    • National Institute of Diabetes and Digestive and Kidney Diseases- Ulcerative Colitis
    • American College of Gastroenterology: IBD

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    Highlights
    IBD
    World IBD Day is May 19

    World IBD Day raises awareness of inflammatory bowel disease.

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    Last Reviewed: April 17, 2023
    Source: National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention
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