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Home/Conditions/Small Intestinal Bacterial Overgrowth (SIBO)
Condition Guide

Small Intestinal Bacterial Overgrowth (SIBO)

When good bacteria end up in the wrong place

SIBO occurs when bacteria that normally live in the colon migrate into the small intestine, causing fermentation, malabsorption, and pain. The microbiome connection here is front and center — and new trials are exploring targeted treatments.

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The Microbiome Connection

How Small Intestinal Bacterial Overgrowth (SIBO) relates to gut health

Common Symptoms

  • Bloating and distension
  • Gas and belching
  • Diarrhea or constipation
  • Abdominal pain
  • Nutritional deficiencies
  • Brain fog and fatigue

How the Microbiome is Involved

In SIBO, the microbial ecosystem of the small intestine becomes colonized by organisms that belong in the large intestine. These bacteria ferment carbohydrates prematurely, producing excess hydrogen or methane gas and damaging the gut lining. Treatment focuses on reducing bacterial overgrowth while also restoring proper gut motility and microbiome balance.

Active Trials

No recruiting trials found right now — check back soon.

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