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Gas - flatulence - MedlinePlus Medical Encyclopedia
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Gas - flatulence

Contents of this page:

Illustrations

Intestinal gas
Intestinal gas
Abdominal ultrasound
Abdominal ultrasound

Alternative Names    Return to top

Flatulence (flatus)

Definition    Return to top

Gas, also called flatus or flatulence, is air in the intestine that is passed through the rectum. Air that is passed from the digestive tract through the mouth is called belching.

Considerations    Return to top

Gas is formed in the intestines as food is being digested. Gas can make you feel bloated, which may cause crampy or colicky abdominal pain.

Causes    Return to top

Gas can be caused by any of the following:

Home Care    Return to top

When to Contact a Medical Professional    Return to top

Call your doctor if:

What to Expect at Your Office Visit    Return to top

Your doctor will perform a physical examination with special attention to your abdomen, and ask questions about your symptoms, such as:

Diagnostic tests that may be performed include:

References    Return to top

Birrer RB. Irritable bowel syndrome. Dis Mon. 2002;48:105-143.

Lovelace HY, Barr SI. Diagnosis, symptoms, and calcium intakes of individuals with self-reported lactose intolerance. J Am Coll Nutr. 2005;24:51-57.

Andr??s E, et al. Food-cobalamin malabsorption in the elderly. Am J Med. 2002;113:351-352.

Update Date: 2/20/2008

Updated by: Christian Stone, MD, Division of Gastroenterology, Washington University in St. Louis, School of Medicine, St. Louis, MO. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 1997-2009, A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.


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