Crohn's disease is a type of inflammatory bowel disease (IBD) that may affect any segment of the gastrointestinal tract from the mouth to the anus. Symptoms often include abdominal pain, diarrhea (which may be bloody if inflammation is severe), fever, abdominal distension, and weight loss.Other complications outside the gastrointestinal tract may include anemia, skin rashes, arthritis, inflammation of the eye, and fatigue. [Source: Wikipedia 
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