The cause of the inflammatory bowel diseases (IBD), ulcerative colitis, and Crohn's disease, is not known. Studies suggest they are caused by a combination of things, including genes, environmental factors, and problems with the immune system.
There is strong evidence to suggest a genetic basis for IBD, including:
If you or a loved one has been diagnosed with an inflammatory bowel disease (IBD) -- like Crohn's disease or ulcerative colitis -- or diverticulitis, your doctor may suggest you follow a low-residue diet. A low-residue diet involves eating more easily digestible foods. A low-residue diet may reduce symptoms of IBD, such as diarrhea and stomach cramping; however, it will not cure IBD.