Irritable Bowel Syndrome (IBS)

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This information was reviewed and approved by Digestive Diseases Information Clearinghouse (6/30/2009).

Irritable bowel syndrome (IBS) is a disorder characterized most commonly by cramping, abdominal pain, bloating, constipation, and diarrhea.

IBS causes a great deal of discomfort and distress, but it does not permanently harm the intestines and does not lead to a serious disease, such as cancer. Most people can control their symptoms with diet, stress management, and prescribed medications. For some people, however, IBS can be disabling. They may be unable to work, attend social events, or even travel short distance.

As much as 20 percent of the adult population has symptoms of IBS, making it one of the most common disorders diagnosed by doctors. It occurs more often in women than in men, and it begins before the age of 35 in about 50 percent of people who are affected.


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  • Danielle Keogh

    Danielle Keogh, FNP-BC

  • Jeffrey B. King

    Jeffrey B. King, MD

  • Pranav Periyalwar

    Pranav Periyalwar, MD, FACG, FASGE

  • Neil W. Toribara

    Neil W. Toribara, MD, PhD

  • Vivian M. Ussui

    Vivian M. Ussui, MD, MSc

  • Kathleen Yan

    Kathleen Yan, MD

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