Irritable bowel syndrome (IBS), sometimes referred to as irritable bowel disease, is one of the most popular diseases of the gastrointestinal tract. The disease affects about 1 in every 5 Americans. This is about 20 percent of the adult population.

IBS occurs more commonly in women than in men, and usually begins when people are about 35 years old and above.

What causes IBS?

There is actually no specific cause of Irritable Bowel Syndrome. In fact, until now people are still puzzled about it.