Lecture Notes: Rome III diagnostic criteria for irritable bowel syndrome

Recurrent abdominal pain or discomfort at least 3 days per month in the last 3 months associated with 2 or more of the following: (1) Improvement with defecation (2) Onset associated with a change in frequency of stool (3) Onset associated with a change in form (appearance) of stool Note:  Discomfort means an uncomfortable sensation not described as pain.