What type of damage does Crohn's disease cause to the GI tract?

Crohn's disease can cause inflammation that affects any part of the gastrointestinal (GI) tract, from the mouth to the anus. This inflammation can lead to damage such as ulcerations, strictures (narrowing of the intestines), fistulas (abnormal connections between bowel segments or other organs), and abscesses. Over time, this damage can result in complications like bowel obstructions and malnutrition, significantly impacting a patient's overall health.