Abdominal bloating

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Abdominal ultrasound

Abdominal bloating is a condition in which the abdomen (belly) feels full and tight. The abdomen may be visibly swollen (distended).

Bloating; Meteorism

Common causes include:

• Air swallowing (a nervous habit)
• Constipation
• Gastroesophageal reflux
• Irritable bowel syndrome
• Lactose intolerance and other food intolerances
• Overeating
• Small bowel bacterial overgrowth
• Weight gain

The diabetes medication acarbose, as well as any medicine containing lactulose or sorbitol, may cause bloating.

More serious disorders that may cause bloating are:

• Ascites and tumors
• Celiac disease
• Dumping syndrome
• Ovarian cancer
• When the pancreas is not able to produce enzymes to help digestion (pancreatic insufficiency)

Review Date: 04/12/2010
Reviewed By: Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine; and George F. Longstreth, MD, Department of Gastroenterology, Kaiser Permanente Medical Care Program, San Diego, California. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).

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