SIBO is often caused by a problem with the small intestine. Damage or defects to the intestine may slow the flow of food. The slowed food may encourage the increased growth of bacteria. Problems of the intestine may be caused by:
Any condition that affects how food moves through the intestines may increase the risk of SIBO. Some problems are:
Hydrogen breath test for lactose intolerance. Cleveland Clinic website. Available at: https://my.clevelandclinic.org/health/diagnostics/12360-hydrogen-breath-test-for-lactose-intolerance. Accessed August 20, 2021.
Short bowel syndrome. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/short-bowel-syndrome. Accessed August 20, 2021.
Small intestinal bacterial overgrowth (SIBO). Merck Manual Professional Version website. Available at: https://www.merckmanuals.com/professional/gastrointestinal-disorders/malabsorption-syndromes/small-intestinal-bacterial-overgrowth-sibo. Accessed August 20, 2021.
Last reviewed July 2021 by
EBSCO Medical Review Board
James Cornell, MD
Last Updated: 8/20/2021
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