After FUE, is it correct the donor area will replenish approximately 25% of the grafts that were harvested from it?

That is incorrect. Once the hair has been extracted from the donor area it generally will not regrow. Sometimes ACELL can be used and with minimal depth of punch and small punches you may see a little graft regrowth however, 25% is very optimistic. If a surgeon is seeing 25% regrowth in the donor area it is likely that the follicles that they attempted to extract were transected and those are the ones that grew back.

Once you harvest the hairs, it does not grow back.  Donor area does not "replenish".  If you are confused about what a doctor may have told you, it may be best to contact your doctor for clarification.

Thank you for your question. The donor area is selected as the donor because of its capability to replenish all of the grafts. NeoGraft's Follicular Unit Extraction method uses an automated system to help ensure accuracy and precision as the least invasive procedure currently available for hair transplants.  I suggest that you move forward and contact your board certified facial plastic surgeon. 

Best wishes,

Grafts that are taken from the donor area do not grow back or replenish. Everyone has a finite number of grafts available and they don't ever increase over time. This is why using them efficiently is so important during transplants, and why its usually a good idea to leave some left over in case you ever want a future transplant.

The hair harvested for a transplant will not grow back in the donor area.  It will grow in the new location.  

no that is not correct. if you harvest a follicular unit, you remove the hair shaft, bulb, and surrounding tissue, and move it to the recipient area. it will not regenerate. if you have a transected graft harvested and the bulb remains in the donor area, you can get growth in the donor area, but obviously will not get growth where it was transplanted. 

no , it is wrong. After we harvest the grafts , simply they replaced and transfered  to recipient area for new hair growth.so they are not exist on donor site any more and dont renewed.

When hairs are transplanted from the donor area to the recipient area, those hairs are permanently removed from the donor area - they are not replenished.  

This is a great question and a little more involved than might seem. If a surgeon does a beautiful job during FUE, there is little transection (injury to the grafts). A 2500 graft procedure yields 2500 beautiful grafts for the front. 2500 grafts disappear from the back and the patient has 2500 fewer follicular units there. The frontal might look amazing because there are 2500 more follicular units put there. This is the ideal. If a surgeon does a less than beautiful job during FUE, there is a lot of transection (injury to the grafts). A 2500 graft procedure yields 1500 beautiful grafts for the front. 1500-1800 grafts disappear from the back and the patient has 1500-1800 fewer follicular units there.  But 700 grow back! Why do they grow back - because they weren't extracted properly. They didn't all come out and lots of tissue and hair was left behind. The frontal might look less than amazing because there are only 1500 (not 2500 !!!) follicular units put there. This is the not the ideal. But in this case it is absolutely correct to tell the patient "We harvested 2500 grafts but I think 700 will regenerate at the back. I think 28 % in fact will regenerate!" Is the patient happy? Sure. But what the patient does not know is that only 1500 are going into the front - not 2500. Will he or she be happy in 1 year when everything grows out? Maybe. Maybe not. Certainly, he or she will be less happy than in 2500 grew there. MAIN MESSAGE: A graft extracted does not grow back. In the year 2016, there is no evidence for such regeneration. If you take a graft properly, it's gone.  

Once the grafts have been harvested from the donor area and placed in to the transplant area, they are gone from the donor area where they were taken and have now been moved in to the new area where we are replacing the hair loss. If the grafts have been removed they will not grow back or regenerate.