Who is affected by irritable bowel syndrome (IBS)

Irritable bowel syndrome (IBS) is one of the most common intestinal disorders, affecting about 10% to 15% of people in North America.¹ Up to 20% of people have symptoms of IBS, such as abdominal pain and altered bowel habits, although less than half of them see a doctor for their symptoms.²

IBS is twice as common in women as in men. In the United States, it is estimated to occur in 14% to 24% of women and 5% to 19% of men.³ The condition is also common in India, Japan, and China.

IBS is less likely to develop for the first time in people over age 50.

Author:	Robin Parks, MS	Last Updated: June 15, 2006
Medical Review:	Kathleen Romito, MD - Family Medicine Arvydas D. Vanagunas, MD - Gastroenterology
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