How will skin sensitivity affect a scar from a tummy tuck?
Sensitive skin as such does not interfere with wound healing, or determine the quality of the scar.
Provided you do not have any medical condition involving the skin or collagen diseases, there should be no effect on the wound healing.
As for scarring, it is determined by many factors - the position of the scar, how it heals, but most importantly your genetic factors. If your genes are determined to form a thick scar or a keloid scar, there is not much that can be done. Once the scar is formed it can be evaluated, and ways to improve the scar can be discussed.
In any surgery, once an incision is made, YOU WILL HAVE A SCAR; THE QUALITY OF THAT SCAR CAN NOT BE GUARANTEED, IT IS DETERMINED BY YOUR GENES.
Discuss your concerns with your plastic surgeon. After examining you and evaluating your skin, he/she will be able to discuss with you in detail your concerns.