Plastic Surgery of back skin of finger

  1. will i get normal skin as before or is it easy to determine that my finger is plastic surgerised.
  2. since it is already a week after surgery and now my finger has some black spots and that is where surgery is done
  3. will that black spot remain till the end or wil i get my original colour on my finger as time progresses?! 
  4. please clear my doubt