When doing a FUE transplant, does the donor site hair grow back?

Donor hairs do not grow back. This is true for any hair transplant surgery.  You are transferring hairs from one location (donor area) to another area (face/ beard area).

When hair is selected from the donor site, we are removing the actual follicular unit, which can have 1 to 4 hairs in the unit. Therefore a new hair will not manufacture itself once it is gone. However, with our Advanced SmartGraft System, we remove the follicular unit with suction, and remove from a large area as evenly as possible, so the patient will never miss the hair we borrow, if that makes since. For example if we just removed everything we need over a small area, that small area would be noticeably missing hair etc... 
So in summary, it really isn't an issue with our patients that the hair does not grow back from the donor site.
Hope this answer helped out.
Best of luck!

Dear HNLisland,With a properly done FUE procedure, especially if done with the ARTAS robot, there will be no signs that hair was taken from the donor site.Hair is harvested carefully with adequate spacing between harvest sites.  If this is done, there will be no sign that hair was taken from the donor site.  As the grafts have been taken out individually, there will be no scar.Aloha,Shim Ching, MD

Generally speaking, the extracted hair follicles do not grow back.  However, if you have good density in the donor region you definitely should not notice any type of thinning provided the FUE procedure is performed properly.

Once removed, hair from the donor site will not grow back, regardless of the technique used.The donor area is finite and that is why carefully planning your hair transplant under the guidance of a qualified hair transplant physician is essential.