Harvard Health Beat

What's causing your IBS

While the exact cause of irritable bowel syndrome, or IBS, is unknown, studies have suggested that IBS might be related to a few specific changes in the body. Some symptoms may be caused by spasms, uncontrolled contractions in the muscles of the colon. The nerve endings in the intestines also may become unusually sensitive, magnifying pain. The reasons for these changes are not always known, but factors that have been linked with IBS include…

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