This article is from the Plastic and Reconstructive Surgery FAQ, by mooncrow@lava.net (Robert Green) with numerous contributions by others.
Any time a cut or incision is made in the skin, there is a scar left
behind as part of the normal healing process. Plastic and Reconstructive
Surgeons have received special training and have extensive experience with
minimizing the size of these scars, creating the least noticeable appearance
of then, and locating them in the least conspicuous areas possible. Often
the scars will become undetectable to all but the most careful examination
over the course of time.
 
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