Although the bacteria hypothesis is compelling, I do not think that is can be considered the cause of the problem. I think it just exerbates it. I suggest taking a look at the gut-neuro signaling hypothesis. The gut has the highest number of neurons ourside the brain as compared to any other organs. There are numerous papers showing that neuro signaling is altered in the gut of pts with IBS. Specifically with 5-HT and H3 signaling. The research is stronger in this area than in the bacteria. Now don't get me wrong, I think that excessive bacteria could have a role in the disease, but I don't think it is the underlying cause. There is currently not enough evidence to support it.
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Bacteria hypothesis..How about the gut-neurology hypothesis
