As your incisions heal, they will darken initially as the body creates new collagen fibers to fill and close the wounds. This will make your scars darker, thicker, and somewhat more prominent for anywhere from 3-6 months. This can be ultimately depressing, but patience is a good thing here because they will lighten. Once the body has formed enough collagen at the wound site, some of it will break down as the blood supply decreases. Now the scar will become lighter, thinner, and flatter. It takes one to two years for scars to fully mature and vigilance and patience pays off. Sun protection is critical!