Irritable Bowel Syndrome (IBS) (cont.)
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The exact cause of irritable bowel syndrome (IBS) is not known. But health experts believe faulty communication between the brain and the intestinal tract causes the symptoms of IBS.
A complex combination of elements, including psychological stress, hormones, the immune system, and chemicals called neurotransmitters, appears to interfere with messages between the brain and the bowel. The miscommunication causes abnormal muscle contractions or spasms, which often cause cramping pain. The spasms may either speed the passage of stool, causing diarrhea, or slow it down, causing constipation or bloating.
People who have IBS seem to have unusually sensitive intestines. It is not known why their intestines are more likely to react strongly to the elements that contribute to IBS. People who have IBS may start having symptoms because of one or more factors, including:
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