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How does the immune system work?

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If there is an invader that needs to be eliminated, your body's defense reaction begins. This immune system response causes inflammation. Immune system cells, chemicals, and fluids flood to the site to overcome the offending substance. After the substance has been disabled or removed, the immune response ends. Inflammation subsides.

From: What Causes Crohn’s Disease? WebMD Medical Reference

SOURCES:

National Digestive Diseases Information Clearinghouse: "Crohn's Disease."

Crohn's and Colitis Foundation of America: "About Crohn's Disease."

Merck: (online version): "The Immune Response: Defenses Against Infection." Merck Manual: Home Edition for Patients and Caregivers

American College of Gastroenterology: "Inflammatory Bowel Disease."

Reviewed by Minesh Khatri on October 25, 2017

SOURCES:

National Digestive Diseases Information Clearinghouse: "Crohn's Disease."

Crohn's and Colitis Foundation of America: "About Crohn's Disease."

Merck: (online version): "The Immune Response: Defenses Against Infection." Merck Manual: Home Edition for Patients and Caregivers

American College of Gastroenterology: "Inflammatory Bowel Disease."

Reviewed by Minesh Khatri on October 25, 2017

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How does the immune system in a person with Crohn's disease work?

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