in order to gain access to the brow, the surgeon will need to make and incision along your hairline, and then drape the tissue down to expose the bone. And typically there is hair loss around the incision sites. So, yes it would be advantageous to hold off on getting hair transplants until after having the brow surgery, but, if you would rather have the hair transplants now, and forgo brow surgery in the future, or have it done later on, and choose to have hair replaced as needed, you can do that too.