Scabies can cause severe itching and scratching that resembles excoriation (skin-picking) disorder. Excoriation disorder is not diagnosed when the skin picking is primarily attributable to scabies, although an underlying dermatological condition may precipitate or exacerbate comorbid excoriation disorder.

State University of New York at Buffalo

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Excoriation disorder is not diagnosed if the skin picking is primarily attributable to another medical condition. For example, scabies is a dermatological condition invariably associated with severe itching and scratching. However, excoriation disorder may be precipitated or exacerbated by an underlying dermatological condition. For example, acne may lead to some scratching and picking, which may also be associated with comorbid excoriation disorder (so-called acne excoriée). The differentiation between these two clinical situations (acne with some scratching and picking vs. acne with comorbid excoriation disorder) requires an assessment of the extent to which the individual’s skin picking has become independent of the underlying dermatological condition.

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