The symptoms and complications of Crohn's disease differ, depending on what part of the intestinal tract is inflamed. That's why it is important for you to know which part of your intestine is affected by Crohn's disease. Your doctor may also refer to your illness by various names based on the principal area involved. The following are five types of Crohn's disease, together with their presenting symptoms:
- Ileocolitis: The most common form of Crohn's, affecting the ileum and colon. Symptoms include diarrhea and cramping or pain in the right lower part or middle of the abdomen. Often accompanied by significant weight loss.
- Ileitis: Affects the ileum. Symptoms same as ileocolitis. Complications may include fistulas or inflammatory abscess in right lower quadrant of abdomen.
- Gastroduodenal Crohn's disease: Affects the stomach and duodenum (the first part of the small intestine). Symptoms include loss of appetite, weight loss, and nausea. Vomiting may indicate that narrowed segments of the bowel are obstructed.
- Jejunoileitis: Produces patchy areas of inflammation in the jejunum (upper half of the small intestine. Symptoms include abdominal pain (ranging from mild to intense) and cramps following meals, as well as diarrhea. Fistulas may form.
- Crohn's (granulomatous) colitis: Affects the colon only. Symptoms include diarrhea, rectal bleeding, and disease around the anus (abscess, fistulas, ulcers). Skin lesions and joint pains are more common in this form of Crohn's than in others.