The doctor may suspect IBS based on your symptoms and past health. There are no specific tests for IBS. Your doctor will rule out other conditions that cause similar problems.

A physical and rectal exam will be done.

IBS may be diagnosed if you had 2 or more of the following symptoms on 1 or more days a week, over the past 3 months:

  • Pain relieved by a bowel movement
  • Onset of symptoms with a change in stool frequency
  • Onset of symptoms with a change in stool appearance

Your doctor may want to do tests if certain symptoms are present. It will help to rule out other conditions such as inflammatory bowel disease, colon or rectal cancers, or infections.

Tests may include:

Colonoscopy
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Revision Information

  • Reviewer: EBSCO Medical Review Board Daus Mahnke, MD
  • Review Date: 12/2018 -
  • Update Date: 06/07/2019 -