
Bulimia Nervosa
Bulimia is a potentially life-threatening eating disorder.
People with this condition binge eat. They then take steps to avoid weight gain. Most commonly, this means vomiting (purging). But it can also mean excessive exercising or fasting. Characterized by regular, often secretive bouts of overeating followed by self-induced vomiting or purging, strict dieting, or extreme exercise, associated with persistent and excessive concern with body weight.
Diagnostic Criteria
A. Recurrent episodes of binge eating. An episode of binge eating is characterized by both of the following:
- Eating, in a discrete period of time (e.g., within any 2-hour period), an amount of food that is definitely larger than what most individuals would eat in a similar period of time under similar circumstances.
- A sense of lack of control over eating during the episode (e.g., a feeling that one cannot stop eating or control what or how much one is eating).
B. Recurrent inappropriate compensatory behaviors in order to prevent weight gain, such as self-induced vomiting; misuse of laxatives, diuretics, or other medications; fasting; or excessive exercise.
C. The binge eating and inappropriate compensatory behaviors both occur, on average, at least once a week for 3 months.
D. Self-evaluation is unduly influenced by body shape and weight.
E. The disturbance does not occur exclusively during episodes of anorexia nervosa.