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Bulimia nervosa

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Overview


Plain-Language Overview

Bulimia nervosa is a serious eating disorder that affects the digestive system and overall health. It involves repeated episodes of eating large amounts of food in a short time, known as binge eating, followed by attempts to prevent weight gain through behaviors like self-induced vomiting, excessive exercise, or misuse of laxatives. This cycle can cause problems such as electrolyte imbalances, damage to the throat and teeth, and emotional distress. People with this condition often feel a loss of control during binges and experience intense guilt or shame afterward. The disorder primarily impacts both physical health and mental well-being.

Clinical Definition

Bulimia nervosa is a psychiatric disorder characterized by recurrent episodes of binge eating accompanied by inappropriate compensatory behaviors to avoid weight gain, such as purging (vomiting, laxative use), fasting, or excessive exercise. The core pathology involves a disturbance in eating behavior and body image, often linked to psychological factors like low self-esteem and perfectionism. It primarily affects the gastrointestinal system and can lead to serious complications including electrolyte abnormalities, esophageal tears, and dental erosion. The disorder is associated with significant morbidity and increased risk of mortality. Diagnosis requires the presence of these behaviors at least once a week for three months, with self-evaluation unduly influenced by body shape and weight.

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Differential Diagnoses