I pick at my cuticles all the time, and ive done its since i was a kid. The only way I don't do it is when i have fake nails on, so i try to wear them most of the time. I asked my physician about it a while back and he said its due to extreme anxiety, go figure. Ive been doing this since i was like 9. I know a lot of women that do it and can only stop with nails on. its wierd because i don't know where i channel that anxiety to when i have fake nails on but yet without them i pick and pick. wikepedia has a page for it but i cannot remember the name. this and eyelash picking and hair pulling are all forms of self mutilation.