What are the main signs and symptoms of SIBO?

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    Last Updated: May 16, 2025

    Small intestinal bacterial overgrowth (SIBO) may occur with no symptoms, but common signs include bloating, flatulence, nausea, abdominal pain, and diarrhea or constipation.

    SIBO may have no symptoms, but commonly include:[1][2]

    • Bloating
    • Flatulence
    • Nausea
    • Abdominal Pain
    • Diarrhea/constipation[2]
    What are the main signs and symptoms of SIBO? - Examine