What is the test of sibo?

Complex issue: Small intestinal bacterial overgrowth is not a well defined syndrome and is the result of a number of underlying disorders. There is not likely to be a single test for the entity. See this site for more info. http://www.ncbi.nlm.nih.gov/pmc/articles/pmc2890937/.

Be careful: "Small intestinal bacterial overgrowth" is usually a "pop" diagnosis made by non-evidence-based practitioners as an explanation for everything. You'll be offered a host of treatments but will never be cured or feel well. Without a jejunal aspirate showing a huge number of bacteria, the diagnosis isn't established. It's your money and your health. Please be discerning.