Irritable bowel syndrome is a gastrointestinal (GI) disorder, meaning symptoms are caused by changes with a functional GI disorder that have frequent symptoms.
IBS is diagnosed when a person has had abdominal pain or discomfort at least three times a month. IBS pain or discomfort may occur with a change in bowel movements. You could have diarrhea or constipation or a combination of both. Symptoms may often occur after eating a meal.
Studies have estimated IBS affects about twice as many women than men.