Crohn's disease
Crohn's also known as regional enteritis, presents as an inflammatory bowel disease (IBD) resulting in chronic inflammation from mouth to anus. The disease progresses in "patches" meaning the areas of inflammation aren't continuous. Crohn's affects approximately 0.1-0.3% of the population. The exact cause of the illness is unknown, but several factors such as heredity and immune activation by a bacterium or virus have been proposed in the development of IBD.