Hong Kong Eating Disorders Association Limited
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Diagnostic Criteria of BN

  • Eating an unusual large amount of food in a discrete period of time (e.g. within 2 hours) and feeling of loss of control
  • Recurrent compensatory behaviors after binging to prevent weight gain such as vomiting, using laxatives and diuretics, dieting/ fasting and doing excessive exercises.
  • Recurrent episodes of binge eating and compensatory behaviors for three months or more that lead to impaired social functioning
  • Body shape and weight become excessively important for self evaluation

Subtype of BN

Purging Type

  • Using laxatives, diuretics and self-induced vomiting as compensatory behaviors


Non-Purging Type

  • Dieting and doing excessive exercises as compensatory behaviors.

Signs and Symptoms of Bulimia Nervosa

Physical

  • Frequent weight fluctuations
  • Irregular menstruation
  • Lethargy and tiredness
  • Frequent vomiting leads to:
    • Swollen parotid glands, tooth decay
    • Imbalance in biochemical system that leads to heart problem
    • Red marks leave on fingers due to harms of stomach acid
  • Frequent use of laxatives lead to gastrointestinal and bowel disruptions
  • Dehydration


Psychosocial

  • Feelings of loss of control, negative body image and being useless
  • Preoccupied with automatic thinking on food and drive to be thin at the same time
  • Body shape being the only thing for evaluating self image
  • Feel depressed, anxious, guilt and urge to self-destruction after binging
  • Intense and conflicted family members relationships
  • Eat normally in front of others and then binge in secret
  • Diminished social network due to ongoing avoidance to eat with others

Behavioral

  • Vicious cycles of fasting and binge eating
  • Consume extremely large amount of food in secret
  • Conceal large amount of food at home in secret
  • Stay in toilet for a long time after eating (for vomiting)
  • Do excessive exercises, self-induce vomit, fasting/ dieting, take laxatives, diuretics or slimming pills after binging
  • Stealing (especially food)

 

** If you suspect your family members, friends or yourself suffering from eating disorders, call us as soon as possible at our hotline 2850 4448.