Irritable Bowel Syndrome (IBS) symptoms, a complex of abdominal pain, bloating, change in bowel habits and stool forms, may be manifestations of close to 40 different reasons including IBS. This is documented in the differential diagnosis section. Majority of cases are due to diet and lactose intolerance. Avoiding lactose and high FODMAP foods and staying on low lactose, low FODMAP diet can provide significant relief in patients suffering from above-described symptoms.

DISCLAIMER:
This is a free educational site to provide some guidance to the patients with IBS. This should by no means replace seeing an expert specially if alarm symptoms are present.
Physicians will find many clinical and therapeutic "pearls" here, and are encouraged to review it when dealing with "difficult to treat IBS patients".