This question, from a member of our Hair Restoration Social Community and Discussion Forums, was answered by recommended hair transplant surgeon Dr. Blake Bloxham:
Yes. The patient must understand that his hair loss is progressive and that he may want more in the future. We also have to start “smart” with respect to where we work, how aggressive we go, etc; and we must respect the donor and leave a good amount “in the bank” for future hair restoration surgeries.
But if this is understood, then it’s not a problem from my perspective.