If you’re struggling with chronic digestive issues, you might have heard of inflammatory bowel disease (IBD). There are two main types of IBD: ulcerative colitis and Crohn’s disease. At Gateway Gastroenterology, our team of specialists is dedicated to helping patients find relief from both.
When dealing with persistent gut pain, understanding the differences between the two main types of IBD is the first step toward getting the right treatment. While Crohn’s and ulcerative colitis are both chronic inflammatory conditions of the digestive tract, they differ significantly in where they occur, how deeply they affect your intestines, and how they are managed.
The primary difference between these two conditions lies in the location and depth of the inflammation. Crohn’s disease can affect any part of the digestive tract, from the mouth to the anus. It affects all layers of the bowel wall. In contrast, ulcerative colitis is strictly confined to the large intestine (colon and rectum) and only inflames the innermost surface lining.
Crohn’s disease often presents with “skip lesions,” patches of diseased tissue that lie next to healthy areas. Ulcerative colitis is more likely to cause continuous, even inflammation without any healthy patches. Because of these differences, a precise diagnostic evaluation is essential to ensure you receive the correct treatment plan.
Crohn’s disease is more likely than ulcerative colitis to bring complications like fistulas. Because Crohn’s inflammation penetrates the entire bowel wall, it can create these abnormal “tunnels” between normally unconnected parts of the body or create severe scarring that narrows the intestines.
Fistulas often are treated with surgery. And that is more frequently necessary if you have Crohn’s. In a 2025 study, 26.4% of Crohn’s patients needed surgery vs. 13% of those with ulcerative colitis.
People can have Crohn’s disease or ulcerative colitis, but not both at once. They are distinct, mutually exclusive medical conditions driven by different immune system pathways. Confusion often arises when Crohn’s disease is located only in the colon, a variation known as Crohn’s colitis.
Sometimes, early symptoms are ambiguous, leading to a temporary diagnosis of indeterminate colitis. If your symptoms or test results change, our team will update your diagnosis to ensure you receive the most effective care.
Living with either Crohn’s disease or ulcerative colitis can be challenging, but you don’t have to navigate it alone. Whether you need advanced diagnostic testing, personalized medication management, or specialized services, we are here to support you.
Call or email us today at our office in Ballwin, Missouri, for assistance in dealing with Crohn’s, ulcerative colitis, or any intestinal issues you have.