Home About Shands For Healthcare Professionals Newsroom ShandsConnect Index
Search:


Upper gastrointestinal system
Upper gastrointestinal system


Bulimia

Definition:

Bulimia is an illness defined by food binges, or recurrent episodes of significant overeating, that are accompanied by a sense of loss of control. The affected person then uses various methods -- such as vomiting or laxative abuse -- to prevent weight gain.

Many, but not all, people with bulimia may also suffer from anorexia nervosa, an eating disorder involving severe, chronic weight loss that proceeds to starvation.



Alternative Names:
Bulimia nervosa; Binge-purge behavior; Eating disorder - bulimia

Causes, incidence, and risk factors:

In bulimia, eating binges may occur as often as several times daily for many months. These binges cause a sense of self-disgust, which leads to compensatory behaviors like self-induced vomiting or excessive exercise. A person with bulimia may also abuse laxatives, diuretics, or enemas in order to prevent weight gain.

Such behaviors can be quite dangerous and may lead to serious medical complications over time. For example, the stomach acid which is introduced into the esophagus (the tube from the mouth to the stomach) during frequent vomiting can permanently damage this area.

Many more women than men have bulimia, and the disorder is most common in adolescent girls. The affected person is usually aware that her eating pattern is abnormal and may experience fear or guilt associated with the binge-purge episodes. Although the behavior is usually secretive, clues to this disorder include overactivity, peculiar eating habits or rituals, and frequent weighing.

Body weight is usually normal, although the person may perceive themselves as overweight. If bulimia is accompanied by anorexia, body weight may be extremely low.

The exact cause of bulimia is unknown, but factors thought to contribute to its development are family problems, perfectionist personality, and an overemphasis on physical appearance. Bulimia may also be associated with depression.




Review Date: 12/9/2004
Reviewed By: James W. Dilley, M.D., Department of Psychiatry, University of California, San Francisco, CA. Review provided by VeriMed Healthcare Network.

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 2004 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

Illustrated Health Encyclopedia

En Español

Pregnancy Health Center

Shands Careguides

Surgeries and Procedures

Shands HealthCast