There are some tests that help figure out whether you have got IBS.
All patients with suspected IBS, a complete blood count must be done.
You will get a blood test to look for signs of Celiac disease.
Your doctor might order a colonoscopy, an exam that looks for polyps in your large intestine.
A flexible sigmoidoscopy is also possible.
An X-ray called a lower GI series, or barium enema may be used.
Finally, you may be asked to save a stool sample to be tested for blood, infection, or parasites.
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