The current issue of the Diagnostic Manual of the American Association, lays down the criteria for the diagnosis of anorexia and bulimia follows:
a.) Refusal to maintain body weight at or above a minimally normal weight for age and height.
b.) Intense fear of gaining weight or becoming fat, even though underweight.
c.) Disturbance in the way 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.
d.) In postmenarcheal females, amenorrhea, the absence of at least three consecutive menstrual cycles.