Compulsive skin picking is a disorder characterised by the repetitive picking of one's own skin to the point of causing open sores that may bleed and leave scarring. This condition is also known as dermatillomania, pathological skin picking and neurotic excoriation.
People suffering from compulsive skin picking may pick at normal skin variations such as freckles and moles, at pre-existing skin defects such as scabs, sores or acne blemishes, or in some cases imagined skin defects that are not actually visible by others. Individuals with compulsive skin picking not only use their fingernails to pick and scratch but may also use their teeth and/or other instruments such as tweezers, blades and pins. The compulsion to scratch, pick or peel pimples is called acne excorie and could be considered a subtype of compulsive skin picking. Although any part of the body may be attacked, often the face is the targeted area.
Individuals with compulsive skin picking often have a co-existing psychiatric disorder. The most common co-existing psychiatric conditions are major depression and anxiety disorders, especially obsessive-compulsive disorder (OCD). In one study, 52% of patients with compulsive skin picking were also diagnosed with OCD. An organic disease such as anaemia, uraemia or liver disease may also cause compulsive skin picking. It is essential for the doctor to consider all possible causes.
In many sufferers of compulsive skin picking, skin picking is preceded or accompanied by a high level of tension, anxiety or stress and a strong urge to itch or scratch. Often certain events or situations trigger skin-picking episodes. For some, the act of skin picking provides a feeling of relief or pleasure. Skin-picking episodes can be a conscious response to anxiety or may be done as an unconscious habit.
Compulsive skin picking appears to be more common in women than in men, and often starts in adolescence.
It may also be associated with methamphetamine or cocaine abuse.
Skin damage caused from compulsive skin picking can range from mild to extreme. Bleeding, bruising and secondary infections are not uncommon. In severe cases, patients may create wounds so large that they require hospitalised care. Compulsive skin picking often leads to permanent disfigurement, shame and social impairment. Sufferers will often try to hide the damaged caused to their skin by wearing make-up and/or clothes to cover the marks and scars. In extreme cases, they will avoid social situations to hide their condition from those around them.
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