Which part of the body does Crohn's disease primarily affect?

Crohn's disease primarily affects the ileum, which is the last part of the small intestine. This inflammatory bowel disease can cause a range of symptoms due to inflammation that occurs in the lining of the gastrointestinal tract. The ileum is crucial for the absorption of nutrients, and when it is inflamed, it can lead to malnutrition, abdominal pain, diarrhea, and other gastrointestinal issues. Crohn's disease can also affect other parts of the digestive system, but the ileum is the most commonly impacted area, highlighting its significance in this condition. Understanding the role of the ileum helps in recognizing the complications that arise when this part of the digestive system is compromised by Crohn's disease.