Crohn’s disease is an autoimmune disease, characterized by inflammation in the digestive tract, intestine and also part of gastrointestinal (GI) tract. It can affect any part of GI tract from mouth to anus. The most common part that is affected is ileum lower part of intestine.
Based on affected areas it is classified into following types
• Crohn’s ileocolic - in this both ileum and large intestine are affected. It accounts for 50 % of cases.
• Crohn’s ileitis - in this only ileum is affected. It accounts for 30% of cases.
• Crohn’s colitis - in this only Large intestine is affected. It accounts for 20 % of cases.