Fissures Crohn's Disease < GENUINE – 2025 >

Always consult your gastroenterologist or colorectal surgeon before starting any treatment for fissures, especially if you have a known diagnosis of Crohn’s disease.

For most people, an anal fissure—a small tear or crack in the lining of the anus—is a painful but temporary problem, often linked to constipation. However, for individuals living with Crohn’s disease , fissures take on a different, more complex character. They are not just a mechanical tear; they are often a manifestation of the disease itself .

An anal fissure in Crohn’s disease is not "just a tear"—it is a signal that the underlying disease is active. The goal is not to cut the muscle, but to cool the fire. With proper medical management of Crohn’s, even stubborn fissures can heal, reducing pain and preventing the devastating step to fistula formation.

The most significant risk of an untreated fissure in Crohn’s disease is the development of a —an abnormal tunnel that forms from the anal canal to the skin or into nearby organs. Because Crohn’s causes deep, transmural inflammation (through the entire bowel wall), a simple surface tear can burrow deeper, creating a chronic, draining tunnel.

In a healthy person, fissures typically heal within weeks. In a person with Crohn’s—a chronic inflammatory bowel disease (IBD) that can affect any part of the digestive tract from mouth to anus—the body’s constant state of inflammation prevents normal healing.