Causes and Risk Factors
Small bowel obstruction can result from a variety of underlying conditions. Common causes include:
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Adhesions
Scar tissue bands can form connections between sections of the intestine or other abdominal structures. These adhesions may twist, constrict, or compress the bowel, causing an obstruction.
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Hernias
Weak spots in the abdominal wall allow parts of the intestine to protrude, where they may become trapped, restricting blood flow or blocking the passage of intestinal contents.
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Inflammatory Bowel Disease
Chronic inflammation, such as Crohn’s disease, can thicken or narrow the bowel wall, disrupting the normal flow of food and waste.
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Tumours
Growths, whether cancerous or benign, can obstruct the bowel by compressing it externally or blocking it internally, depending on its location and size.
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Foreign Bodies
Ingested objects can become lodged in the small intestine, particularly in areas already narrowed. These may include food particles, non-food items, or gallstones that have entered the intestinal tract.