Bulimia nervosa is an eating disorder characterized by recurrent binge eating, followed by compensatory behaviors.The most common form—practiced by more than 75% of people with bulimia nervosa—is self-induced vomiting, sometimes called purging; fasting, the use of laxatives, enemas, diuretics, and over exercising are also common. Bulimia nervosa was named and first described by the British psychiatrist Gerald Russell in 1979.
The criteria for diagnosing a patient with bulimia are:
• Recurrent episodes of binge eating. An episode of binge eating is characterized by both of the following:
o Eating, in a fixed period of time, an amount of food that is definitely larger than most people would eat under similar circumstances.
o A lack of control over eating during the episode: a feeling that one cannot stop eating or control what or how much one is eating.
• Recurrent inappropriate compensatory behavior to prevent weight gain, such as: self-induced vomiting; misuse of laxatives, diuretics, or other medications; fasting; excessive exercise.
• Triggers include periods of stress, traumatic events, and self-evaluation of body shape and weight.
• These symptoms may occur after every meal on a daily basis or once every few months.
• The disturbance does not occur exclusively during episodes of anorexia nervosa.
The criteria for diagnosing a patient with bulimia are:
• Recurrent episodes of binge eating. An episode of binge eating is characterized by both of the following:
o Eating, in a fixed period of time, an amount of food that is definitely larger than most people would eat under similar circumstances.
o A lack of control over eating during the episode: a feeling that one cannot stop eating or control what or how much one is eating.
• Recurrent inappropriate compensatory behavior to prevent weight gain, such as: self-induced vomiting; misuse of laxatives, diuretics, or other medications; fasting; excessive exercise.
• Triggers include periods of stress, traumatic events, and self-evaluation of body shape and weight.
• These symptoms may occur after every meal on a daily basis or once every few months.
• The disturbance does not occur exclusively during episodes of anorexia nervosa.
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