Bulimia nervosa; Binge-purge behavior; Eating disorder - bulimia
In bulimia, eating binges may occur as often as several times a day for many months. These binges cause a sense of self-disgust, which leads to self-induced vomiting or excessive exercise.
Body weight is usually normal, although the person may perceive themselves as being overweight. In a person who also has anorexia, body weight may be extremely low.
A dental exam may show dental cavities or gum infections (such as gingivitis). The enamel of the teeth may be eroded or pitted because of excessive exposure to the acid in vomit.
A chem-20 test may show an electrolyte imbalance (such as hypokalemia) or dehydration.
American Psychiatric Association. Treatment of patients with eating disorders, 3rd ed. American Psychiatric Association. Am J Psychiatry. 2006 Jul;163(7 Suppl):4-54.
Berkman ND, Lohr KN, Bulik CM. Outcomes of eating disorders: a systematic review of the literature. Int J Eat Disord. 2007 May;40(4):293-309.