Depending on the amount of the hair to be transplanted, FUE hair transplantation usually takes about 5 to 6 hours. Time duration of the process depends on some factors such as density of the donor area, thickness of the hair and the area to be covered. A smaller procedure, where only around 200 grafts are needed, can be completed in a couple of hours. However, larger procedures of around 2,500 to 3,000 grafts may require another session.