I do this too - I didnt really think much of it until I saw this post and did some research online. I'm really **** about having dirt under my finger nails and skin peeling - I have to get it all off and dig with scissors until its smooth...by which time my fingers are red raw and/or bleeding :s I havent been diagnosed with OCD (tho several online tests suggest I do have it) because my ****-ness doesnt rly bother me (tho it irritates those around me who dont get why everything must be so exact! lol) so I dont see the point in telling my pdoc. Tbh it's hard enough getting my pdoc to be interested enough with my severe depression atm!!
The thing is, my mum is rly getting on my case about the skin picking thing saying that I'm deliberately self-harming (I have SH'd in the past) and I've read that dermatillomania can be a SH-thing but is mostly an OCD compulsion. I leave my fingers alone if they are smooth so I think it's a perfectionism thing...but my mum just doesnt get why I cant just put moisturiser on and let my hands get smooth rather than making them bleed. I guess I dont know either... *sigh*
Anyway to other pickers out there

*Willow*