Irritable Bowel Syndrome (IBS) is characterized by chronically recurring lower abdominal pain and discomfort associated 
with alterations in bowel habits. And the following picture shows the algorithmic guide for diagnosing the Irritable Bowel Syndrome based on positive findings (click to enlarge the diagram).
In this guideline you will be described with the theory of the pathophysiologic mechanisms and reports on diagnostic and management principles for the primary care provider. Find sections such as abnormality sensory perception of pain in patients with IBS, Psychologic disorders seen, Brain-gut axis, The differential diagnosis of IBS, approach to the management of IBS, Dietary modification, and Pharmacologic treatment.
Complete explanations on Irritable Bowel Syndrome Algorithm for Primary Care Physicians can be seen in the following IBS guideline (source: jaoa.org)
