Inflammatory bowel diseases, often called IBD, are chronic conditions that cause inflammation in your digestive tract. The two main types are Crohn's disease and ulcerative colitis. Both conditions involve your immune system mistakenly attacking the lining of your intestines.
Crohn's disease can affect any part of your digestive tract from mouth to anus. It often impacts the end of the small intestine and the beginning of the colon. Ulcerative colitis affects only the colon and rectum, causing inflammation and ulcers in the innermost lining.
IBD is different from irritable bowel syndrome, which does not cause intestinal inflammation or damage. IBD symptoms come and go in cycles of flare-ups and remission. During remission, you may feel fine for months or even years. Understanding your condition helps you work with your doctor to manage symptoms and protect your digestive health.