(Based on the American Psychiatric Association's Diagnostic and Statistic Manual, IV)
- Refusal to maintain body weight at or above a minimally normal weight for age
- Disturbance in the way in which one's body weight or shape is experienced, undue influence of body weight or shape on self-evaluation, or denial of the seriousness of the current low body weight
- In postmenarcheal females, amenorrhea, i.e., for at least three consecutive menstrual cycles.
person not regularly engaged in binge-eating or purging behaviors
In addition to symptoms of anorexia nervosa, the person regularly engages in binge-eating or purging behaviors.
- Recurrent episodes of binge eating characterized by 1) eating in a discrete amount of time a large amount of food and 2) a sense of lack of control over eating during the episode
- Recurrent inappropriate compensatory behaviors in order to prevent weight gain, such as self-induced vomiting, misuse of laxatives, diuretics, enemas, and other medications; fasting or excessive exercise
- The binge-eating and inappropriate compensatory behaviors both occur, on average, at least twice a week for three months
- Self-evaluation is unduly influenced by body shape and weight
- The disturbance does not occur exclusively during episodes of anorexia nervosa.
During episodes of bulimia nervosa, the person regularly engages in self-induced vomiting, misuse of laxatives, diuretics, or enemas.
During the episodes of bulimia nervosa, the person has used other inappropriate compensatory behavior such as fasting or excessive exercise but has not regularly engaged in the purgative methods listed above.