Abuse leading to skin picking behavior?

I am wondering if there is a clear pattern of a history of abuse linked with this type of behavior. I myself have had a very difficult childhood and understand that in my case it could be the subconscious guilt playing up on the impulses.
How many of you have been abused and think that skin picking stems from your past?
I am suspecting that skin picking could be an issue due to internalized guilt. Repressed to the point where its subconscious. And to a point where we are unaware of it yet its producing these strong urges since the mind needs to purge itself.