Diverticulitis of the sigmoid colon,X-ray. The dark patches are diverticula,small pouch-like structures that protrude out of weak spots in the intestinal wall. Diverticula are thought to be caused by a low-fibre diet and lack of exercise. In most cases diverticula are symptomless and cause no problems. Occasionally they can become inflamed and infected,a condition called diverticulitis,causing abdominal pain and constipation | |
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