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Which part of the body is primarily affected by Crohn's disease?

  1. Colon

  2. Small intestine

  3. Stomach

  4. Liver

The correct answer is: Small intestine

Crohn's disease primarily affects the small intestine, particularly the ileum, which is the last section of the small intestine before it connects to the large intestine. This inflammatory bowel disease can lead to inflammation and irritation, causing various symptoms such as abdominal pain, diarrhea, fatigue, weight loss, and malnutrition. The small intestine plays a crucial role in digestion and nutrient absorption, so when it becomes inflamed, the body's ability to absorb nutrients is compromised, leading to additional health concerns. While Crohn's can affect any part of the gastrointestinal tract from mouth to anus, its most common location is indeed the small intestine. This understanding is essential for recognizing the clinical manifestations and appropriate management of the condition.