Table of Contents
- Constipation facts
- What is constipation?
- What causes constipation?
- Medications that cause constipation
- Other causes of constipation
- Other causes of constipation (Continued)
- What are constipation symptoms?
- How is constipation diagnosed (evaluated)?
- Exams and tests
- Imaging studies and other tests
- What treatments are available for constipation?
- Dietary fiber and bulk-forming laxatives to treat constipation
- Dietary fiber and bulk-forming laxatives to treat constipation (Continued)
- Other laxatives to treat constipation
- Other laxatives and OTC products to treat constipation
- Other laxatives and OTC products to treat constipation (Continued)
- Prescription drugs to treat constipation
- Other treatments for constipation?
- What is the approach to the evaluation and treatment of constipation?
- When should I seek medical care for chronic constipation?
- What is new in the treatment of constipation?
Quick GuideDigestive Disorders: Constipation Myths and Facts
Other causes of constipation (Continued)
Diseases that affect the colon
There are many diseases that can affect the function of the muscles and/or nerves of the colon. These include diabetes, scleroderma, intestinal pseudo-obstruction, Hirschsprung's disease, and Chagas disease. Cancer or narrowing (stricture) of the colon that blocks the colon can decrease the flow of stool.
Central nervous system diseases
Colonic inertia is a condition in which the nerves or muscles of the colon do not work normally. As a result, the contents of the colon are not propelled through the colon normally. The cause of colonic inertia is unclear. In some cases, the muscles or nerves of the colon are diseased. Colonic inertia also may be the result of the chronic use of stimulant laxatives. In most cases, however, there is no clear cause for constipation.
Pelvic floor dysfunction
Pelvic floor dysfunction (also known as outlet obstruction or outlet delay) refers to a condition in which the muscles of the lower pelvis that surround the rectum (the pelvic floor muscles) do not work normally. These muscles are critical for defecation (bowel movement). It is not known why these muscles fail to work properly in some people, but they can make the passage of stools difficult even when everything else is normal. Continue Reading
Fauci, Anthony S., et al. Harrison's Principles of Internal Medicine. 17th ed. United States: McGraw-Hill Professional, 2011.
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