Diverticulosis overview
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Diverticulosis is the condition of having diverticula in the colon which are outpocketings of the colonic mucosa and submucosa through weaknesses of muscle layers in the colon wall. These are more common in the sigmoid colon, which is a common place for increased pressure. This is uncommon before the age of 40 and increases in incidence after that age.[1]
Causes
Diverticula are thought to be caused by increased pressure within the lumen of the colon. Increased intra-colonic pressure secondary to constipation may lead to weaknesses in the colon walls giving way to diverticula. Other causes may include a colonic spasm which increases pressure, which may be due to dehydration or low-fiber diets; although this may also be due to constipation. Fiber causes stools to retain more water and become easier to pass (either soluble or insoluble fiber will do this). A diet without sufficient fiber makes the stools small, requiring the bowel to squeeze harder to remove the smaller stool.
References
- ↑ Comparato G, Pilotto A, Franzè A, Franceschi M, Di Mario F (2007). "Diverticular disease in the elderly". Digestive diseases (Basel, Switzerland). 25 (2): 151–9. doi:10.1159/000099480. PMID 17468551.