Common risk factors in the development of crohns<unk>  include white ancestry, age 15-40 or 60-80 years, family history of crohns<unk>  and cigarette smoking.
Crohn's disease risk factors
Ulcerative colitis risk factors
Stomatitis risk factors
Campylobacteriosis risk factors
Dyspepsia risk factors
Colon polyps risk factors
Irritable bowel syndrome risk factors
Crohn's disease laboratory findings