Is Bacteria Causing IBS?

The enigmatic-but-common condition known as irritable bowel syndrome, or IBS, is caused by an overgrowth of bacteria in the small intestine, a USC researcher has proposed in the Journal of the American Medical Association.

Researchers have suggested numerous theories to explain IBS, which affects as many as 36 million Americans. But according to gastrointestinal motility specialist Henry C. Lin, associate professor of medicine in the Keck School of Medicine of USC, the idea of a bacterial origin of IBS represents a major change in thinking.

Writing in the Aug. 18 issue of JAMA, Lin proposed that ordinary bacteria normally confined to the large intestine may expand into the small intestine, prompting uncomfortable bloating and gas after meals, a change in bowel movements as well as an immune response that may account for the flu-like illness so common in the IBS patient, including such debilitating symptoms as headaches, muscle and joint pains and chronic fatigue.

Read the full artice here . . .

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