What is bowel obstruction?

The bowel, or intestine, is the part of the digestive tract that absorbs nutrients and fluid from foods we eat. The residue of digested food passes through the bowel and is excreted during elimination, the final stage of digestion. This process can be interrupted or halted by the presence of a bowel obstruction, which is a blockage that prevents the passage of intestinal contents. The cause of the blockage can be mechanical, meaning that there is a physical obstruction. Mechanical blockage may be caused by scar tissue, adhesions, entrapment through a hernia, foreign bodies, gallstones, tumors, impacted feces, and volvulus (twisting of the intestines). Treatment for mechanical obstruction generally involves removing the source of the blockage, if possible.

Ileus, a malfunctioning of the synchronized contractions of the bowel, is another type of obstruction. Causes of ileus include electrolyte imbalances, gastroenteritis (inflammation or infection of the stomach and intestines), appendicitis, surgical complications, and obstruction of the mesenteric artery, which supplies blood to the abdomen. Certain drugs and medications can cause ileus, such as opioids and sedatives, which slow down peristalsis, the contractions that propel food through the digestive tract.

Bowel obstruction can produce symptoms, such as a distended abdomen, fullness, gas, painful spasms, constipation, diarrhea, nausea with or without vomiting, and foul-smelling breath. Treatment options include surgical placement of a tube through the stomach or nose to alleviate the distension and remove the obstruction. Some forms of bowel obstruction, such as those caused by paralytic ileus, may go away on their own.

Bowel obstruction is a serious medical condition that should be evaluated immediately by a health care provider. Seek immediate medical care (call 911) if you develop symptoms of bowel obstruction, such as abdominal pain, distension, or bloating, and are unable to eliminate feces or pass gas.


What are the symptoms of bowel obstruction?

Symptoms of bowel obstruction primarily affect the gastrointestinal system and include vomiting, diarrhea, abdominal fullness and distension (bloating), stomach pain and spasms, and constipation.

Common symptoms of bowel obstruction

Symptoms of bowel obstruction primarily affect the gastrointestina... Read more about bowel obstructionsymptoms


What causes bowel obstruction?

A bowel obstruction occurs when there is a blockage that prevents the passage of intestinal contents that should be excreted. Blockages can be mechanical or caused by ileus.

Mechanical causes of bowel obstruction

Mechanical obstructions are physical blockages due to various causes including:


How is bowel obstruction treated?

Treatment of bowel obstruction begins with seeking medical care from your health care provider, who will likely admit you to the hospital for treatment. Treatment usually involves placing a tube through the nose or stomach to alleviate the symptoms. In some cases, surgery is needed to clear the obstruction or treat the underlying cause.

Treatment to relieve the swelling or dis... Read more about bowel obstructiontreatments

Medical Reviewer: William C. Lloyd III, MD, FACS Last Annual Review Date: Aug 23, 2013 Copyright: © Copyright 2014 Health Grades, Inc. All rights reserved. May not be reproduced or reprinted without permission from Health Grades, Inc. Use of this information is governed by the HealthGrades User Agreement.

This Article is Filed Under: Digestive System

Did You Know?

View Source

Irritable bowel syndrome (IBS) is one of the most common disorders diagnosed by doctors. In fact, it's estimated that as many as 20 percent of adults have symptoms of IBS.