Small Intestinal Bacterial Overgrowth (SIBO): Symptoms & Signs

Medically Reviewed on 1/16/2021

Small intestinal bacterial overgrowth (SIBO) is a condition that occurs when bacteria normally present in the colon (large intestine) backflow and grow in the small intestine.

Signs and symptoms of SIBO include

Causes of small intestinal bacterial overgrowth (SIBO)

A number of different intestinal conditions or other illnesses. Most causes of SIBO are related to motility problems within the intestines. Examples of possible causes of SIBO include Crohn's disease, radiation enteritis, scleroderma, celiac disease, diabetes, complications of abdominal surgery, intestinal adhesions, intestinal diverticulosis, gastric bypass surgery for obesity, or gastrectomy to treat peptic ulcers and stomach cancer can cause SIBO.

Other sibo symptoms and signs

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References
Jameson, J. Larry, et al. Harrison's Principles of Internal Medicine, 20th Ed. New York: McGraw-Hill Education, 2018.