factors that may increase your risk of developing crohn's disease include: having a family history of crohn's disease. your risk increases if an immediate family member such as a parent brother or sister has the disease. having ashkenazi jewish ancestry. smoking cigarettes. factors that may cause crohn's disease symptoms to flare up include: medicines. infections. hormonal changes. lifestyle changes including increased stress. smoking. webmd medical reference from healthwise this information is not intended to replace the advice of a doctor. healthwise disclaims any liability for the decisions you make based on this information. © 1995-2011 healthwise incorporated. healthwise healthwise for every health decision and the healthwise logo are trademarks of healthwise incorporated.
what increases the risk of getting crohns disease?