Bobert... if you don't shave yer arm/hand and they don't shave your arm/hand, your arm/hand may get damn itchy with the cast or splint or whatever it is and changing bandages will be much more of a chore and hurt more. Perhaps I should have explained that. It ain't for them... it's for YOU.

Now, I don't really know what they are gonna do during and after the procedure but *I* would shave my arm/hand "just in case".