This will depend on the technique to be used. In FUT technique, where entire hair follicles and the surrounding cells are completely removed from beneath the scalp surface in stripes, hair regrowth in these strips at the donor site will not at all be possible. It is possible for hair regrowth to take place only in areas at the donor site where the hair follicles were not fully, but selectively removed. Hair is expected to grow back from either side of the incision made, and under some cases, from inside the incision only after the scar has fully healed. This is one of the primary reasons why expert doctors try to keep the donor scar as thin as possible. In most cases the hair transplant doctor will harvest follicles from an area in the scalp with the densest concentration of hair, so that this loss will be barely noticeable. Usually the remaining hair surrounding the donor area is more than enough to conceal the donor spots. Modern techniques such as FUE will not remove skin and hair in strips, but in smaller, even singular follicular batches. This will both cause less scarring and keep the donor areas almost invisible and unnoticeable.