The present study examined the prevalence and heritability of skin-picking symptoms in a large sample of twins. 
- A total of 2,518 twins
- a valid and reliable self-report measure of skin-picking behavior. 
- Twin modeling methods
- All women

Prevalence and Heritability of Excoriation (Skin-Picking Disorder) in an Adult Community Sample: a Twin Study

There is evidence for a genetic vulnerability to excoriation disorder. The disorder is more common in individuals with obsessive-compulsive disorder (OCD) and their first-degree family members than in the general population

State University of New York at Buffalo

Risk and prognostic factors that affect the diagnosis of  Excoriation (Skin Picking Disorder) include:

- Genetic and Physiological

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