Using the FUE method, first, doctor harvests hair follicles from the donor area. They are sorted by an assistant and put aside. After that doctor formes channels in the transplant area, into which the previously collected follicles are then transplanted.
With the DHI method, doctor harvests hair follicles (grafts) with a special medical instrument, similar to a pen, and immediately transplants them to the needed area. It is not required to pre-form the canals, which reduces the time spent by the grafts outside the body and increases their viability.