How long after FUE for donor area to regain fullness?

If you had FUE, the extracted hairs will not return.  So your donor area would not be perfectly back to its original thickness.  If the donor area was not depleted or over harvested it would take several weeks of hair growth to cover any scarring.

I see this quite often in my practice from patients who have had FUE previously by other clinics and are unhappy with their donor zone post procedure.  Lately I've been seeing this frequently coming from turkey.In my patients, their donor zone is healed and returns to excellent density within 1-3 months after the surgery.  The problem with FUE is that many inexperienced doctors are using large punches, punching deep, have high transection rates, and over harvest (take out too many grafts) in 1 surgery.  This is what creates the decreased density and thinning in the donor zone and a lot of times it is permanent.At the last ISHRS conference a Dr. from turkey was describing how great his FUE procedures were and that his transection rate was only 30%. At first I thought I was not hearing correctly, and when I realized I was I left shaking my head.Its important to do a lot of research before undergoing an FUE procedure as there are so many things to look out for.

It's possible that your donor area has been overharvested to compensate for the FUT scar. Generally doctors take enough to ensure that it looks full but not so that it feels full. 

You may very well be experiencing some shock loss in the donor area.  You likely haven't seen your hair so short with the scar but it there is a possibility that the density was lighter above and below the scar.  Obviously cutting the hair highlights that and hair only grows 1/2 inch a month so it feels like longer.  I recommend rubbing Rogaine in the donor area to help improve the growth. 

remember, when you remove a follicle from the donor area to place it into the recipient area, you will not grow hair where it was removed, as it is now growing in the recipient site. The donor area should not be over harvested as to cause a thinning in that area. I recommend following up with the surgeon who performed your procedure to review your photographs from pre op.

The hair follicles and surrounding cells when removed ,hair regrowth in the donor zone is not possible. Hair regrowth will only take place in areas in the donor site where the hair follicles were not fully removed. After FUE Hair transplant surgery the donor should be totally looking normal after few months.  In the hands of an experienced surgeon you probably have no serious change in the donor site even though the density has been exceeded.

4 months post FUE it is normal that the density of the donor area has returned. As long as the surgeon had performed the procedure correctly. When extracting grafts in FUE it must be done in a way that is does not leave the donor area looking sparse of hair. 

Discuss and return to your post op photos with your surgeon.

Thank You

Everything that is effective takes a year in hair transplant.  FUE is no exception.  Your grafts are by no means grown in at 4 months so if you are pleased now you will be very pleased later!

As for your donor area, one of the big drawbacks of FUE is that it reduces the density in the donor area.  Wait for a year, and then if your results do not meet your "fullness" goals, consider adding SMP for additional camouflage.

Once the hairs have been removed from the donor site to be transplanted to another area, they are gone from the donor site and there is nothing left to regain fullness. That is why it is very important to not over harvest the donor site and make sure that you have an experienced and trusted hair transplant specialist do your procedure.