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Crohn's Disease - Cause

The cause of Crohn's disease is unknown. This disease may result from an abnormal response by the body's immune system to normal intestinal bacteria.1 Disease-causing bacteria and viruses also may play a role.

Crohn's disease can run in families, so some people may be more likely than others to develop the condition when exposed to something that triggers an immune reaction. Environmental factors may also play a role in causing this disease.

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What Causes Crohn’s Disease?

Although there are many theories about what causes Crohn's disease, none of them have been proven. There is a benefit, though, in understanding the possible causes of Crohn's disease and how they interact with one another. Doing so can help one better understand the symptoms, diagnosis, and treatment of Crohn's disease. Scientists believe that Crohn's disease is caused by a combination of these factors: Immune system problems Genetics Environmental factors How might each of these factors...

Read the What Causes Crohn’s Disease? article > >

    This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

    WebMD Medical Reference from Healthwise

    Last Updated: May 16, 2013
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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