The diagnosis of IBS-D is based on the exclusion of all other possible causes.

This article explains the causes and symptoms of IBS-D, including how this disorder is diagnosed and treated.

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How Are IBS-D Symptoms Different?

woman with stomach ache

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The primary symptoms of allthree subtypes of IBSare abdominal pain or discomfort.

Some people with IBS-D will suddenly stop having diarrhea and meet the diagnostic criteria forconstipation-predominant IBS (IBS-C).

What Causes IBS-D?

All forms of IBS are thought to be due to the dysfunction of the gut-brain axis.

When the gut-brain axis is working as it should, your bowel movement and stool consistency will be normal.

They include:

How Is ISB-D Diagnosed?

However, to confirm the diagnosis, your healthcare provider will need to exclude all other possible causes.

How Is IBS-D Best Treated?

The selection of treatment is based on the severity and frequency of your symptoms.

FODMAP stands for fermentable oligosaccharides, disaccharides, monosaccharides, and polyols.

The treatment may involve a FODMAP diet and targeted drugs like Viberzi and Xifaxan.

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Drossman DA, Hasler WL.Rome IV-functional GI disorders: disorders of gut-brain interaction.Gastroenterology.

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