Today in speech class a girl gave a presentation explaining how Dermabrasion works, for those that do not know Dermabrasionis a procedure where a plastic surgeon uses a diamond wheel to remove upper layers of skin.
At the end she showed a tape of a women getting the procedure done, it looked painful but, the before and after pics taking a few months later were amazing.
What I was wondering but, the girl could not answer is how can or does the skin know how much it has to heal/grow back? The procedure is done manually and though the surgeon is skilled I doubt he takes off the same amount of skin evenly all over.
How does the skin grow back with a uniform look? I have been looking for an answer but no luck. Does anyone know?