People who experience compulsive skin picking behaviors may call their activities many things including just picking, or pulling in the case of hair, but the medical field applies specific terms to specific behaviors that fall under the “umbrella” of picking.
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Excoriation Disorder - Official Terminology
Neurotic excoriation is the medical term for incessant scratching without a known physical cause. The behavior shows up as linear erosions, scabs, or scars on the skin in areas of the body easily reached by the hands.
Another term used synonymously for neurotic excoriation.