The ileum continues the digestive process started in the earlier parts of the small intestine. It absorbs essential nutrients and transfers the remaining waste to the colon. Its inner walls have villi and microvilli that increase surface area, allowing for efficient absorption of vital compounds.
Located in the lower part of the abdominal cavity, the ileum connects to the large intestine through the ileocecal valve. Its lining is adapted for absorption and contains lymphoid tissues (Peyer’s patches) that play a role in immune defense against harmful pathogens ingested with food.
Diseases affecting the ileum include Crohn’s disease, ileitis, and ileal cancer. Surgical removal (ileectomy) may be required in severe cases. These disorders can lead to malabsorption, diarrhea, weight loss, and vitamin deficiencies, particularly of B12 and fat-soluble vitamins.
A diet rich in fiber, hydration, and probiotics supports ileum health. Avoiding smoking and managing stress also helps, especially for people with inflammatory bowel conditions. Regular checkups and early treatment of gastrointestinal symptoms can prevent complications in the ileum.
If you experience chronic abdominal pain, persistent diarrhea, unexplained weight loss, or signs of nutrient deficiency, consult a healthcare provider. These could indicate problems in the ileum that require further tests, imaging, or endoscopy for accurate diagnosis and treatment.