This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Surgery
ROME III criteria is for? 
Select and explain. 
A. IBS, B. Ulcerative colitis, C. Colonic cancer, D. Colonic hemangiomatas
A: IBS
Answer: A: IBS 
Explanation: Rome III criteria is for the diagnosis of irritable bowel syndrome(IBS). It is as follows: Recurrent abdominal pain or discomfo at least 3 days/month in last 3 months, associated with 2 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. Reference : page 907 Davidson's principles and practice of Medicine 22nd edition