TY - CHAP M1 - Book, Section TI - Chapter 24. Irritable Bowel Syndrome A1 - Friedman, Sonia A2 - Greenberger, Norton J. A2 - Blumberg, Richard S. A2 - Burakoff, Robert PY - 2012 T2 - CURRENT Diagnosis & Treatment: Gastroenterology, Hepatology, & Endoscopy, 2e AB - In the United States, irritable bowel syndrome (IBS) is most common in young women.Rome III criteria include recurrent abdominal pain or discomfort at least 3 days per month in the last 3 months associated with two or more of the following:Improvement with defecation.Onset associated with a change in frequency of stool.Onset associated with a change in form (appearance) of stool.Criteria fulfilled for the past 3 months, with symptom onset at least 6 months prior to diagnosis.Rule out "red flag" symptoms before making a diagnosis of IBS.IBS can be mild, moderate, or severe; four different subtypes are constipation predominant, diarrhea predominant, mixed, and unsubtyped.The Bristol Stool Form Scale is helpful clinically in defining the spectrum of diarrhea to constipation. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/28 UR - accessmedicine.mhmedical.com/content.aspx?aid=55958475 ER -