Irritable Bowel Syndrome

Overview

Mayo Clinic is recognized internationally for its excellence in caring for patients who have irritable bowel syndrome (IBS). Gastroenterologists at all three Mayo locations are skilled in diagnosing and treating IBS; Mayo treats thousands of IBS patients each year. At Mayo Clinic, IBS patients have access to leading experts and researchers on IBS.

Diagnosis

Mayo offers the latest in screening and diagnostic services for IBS. Diagnostic tools include stool studies, colonoscopies and functional assessment of the gastrointestinal tract. Physicians work together to rule out diseases such as inflammatory bowel disease, celiac disease or microscopic colitis that can be misdiagnosed as IBS. Determining the correct diagnosis is essential for effective treatment. Read more about IBS diagnosis.

Treatment Options

The primary goal for treatment is to reduce symptoms. This can often be accomplished with stress management techniques or changes in diet. If symptoms continue, ongoing care by a physician may be needed. IBS may be treated with various medications, from fiber supplements to antidepressants. Several new drugs are available. Read more about IBS treatment options.

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About Irritable Bowel Syndrome

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Nearly one in five American adults has irritable bowel syndrome. The disorder accounts for more than one of every 10 doctor visits. Yet it's also a condition that many people are reluctant to discuss with their physicians. In most cases, the disease can be managed with treatment; a small percentage of patients have severe symptoms.

IBS is characterized by abdominal pain or cramping and changes in bowel function, including bloating, gas, diarrhea and constipation. The walls of the intestines are lined with layers of muscle that contract and relax as they move food from the stomach through the intestinal tract to the rectum. Normally, these muscles contract and relax in a coordinated rhythm. With IBS, the contractions are stronger and last longer than normal. Food is forced through the intestines irregularly, causing symptoms of gas, bloating, diarrhea and constipation

Women are two to three times more likely than men to have IBS — it is believed that hormonal changes sometimes play a role in the disease. IBS can be confused with inflammatory bowel diseases such as ulcerative colitis or Crohn's disease, but, unlike those diseases, IBS does not cause significant inflammation or increase the risk of colorectal cancer.

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