Intestinal obstruction

[Dianne]

An obstruction of the intestine is a blockage that completely stops or seriously impairs the passage of food, fluid, digestive secretions, and gas through the intestines.

The most common causes in adults are scar tissue resulting from previous abdominal surgery, hernias, and tumors.
Pain, bloating, and a loss of appetite are common.
The diagnosis is based on the results of a physical examination and x-rays.
Surgery to remove the obstruction is often needed.

(See also Overview of Gastrointestinal Emergencies.)
An obstruction may occur anywhere along the small or large intestine and can be partial or complete. The part of the intestine above the obstruction continues to function. This part of the intestine enlarges as it fills with food, fluid, digestive secretions, and gas. The intestinal lining becomes swollen and inflamed. If the condition is not treated, the intestine can rupture, leaking its contents and causing inflammation and infection of the abdominal cavity (peritonitis).