Crohn's disease

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Crohn's disease is a lifelong inflammatory bowel disease. It causes swelling, inflammation, and deep sores in the lining of your digestive tract. It usually affects the small and large intestine. But it can attack any part of the digestive tract, from the mouth to the anus.

Crohn's can cause diarrhea, belly pain, and weight loss. Medicines can help control inflammation and keep the disease from causing symptoms.

It's not clear what causes Crohn's disease, but it may run in families.

The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.