When harvesting the hair in the extraction of units, the surgeon extracts each follicular unit separately using a fine punch that varies in diameter from 0.7 mm to 1.1 mm. There are many types of holes and methods that can be used (manual holes, mechanical holes, etc.), all of which are capable of providing good culture results if carried out by experts. A significant difference in outcomes is determined by the surgeon’s ability and experience.
Older techniques, like FUT, involve surgically removing part of the scalp from the donation area and then seperating the follicular units outside the body using a microscope, leaving a large longitudinal scar. However, the extraction of individual follicular units as in FUE involves no cutting of the scalp and no longitudinal scar. Each follicular unit can be extracted separately. Each may contain one, two, three, or four hairs grouped in each unit. As for the scars in the donor area, FUE leaves many (hundreds or even thousands) tiny scars that are less than one millimeter in diameter. When the procedure is performed efficiently, only minuscule white dots may appear when the hair is completely shaved.
Achieving a natural appearance depends on many factors – such as the front hairline pattern and direction/angle. In fact, just like hairs are individually extracted in FUE, they are individually implanted, giving a natural appearance. The extraction of individual follicular units usually takes longer. The donor area recovers very quickly with this procedure; all the cut heal within two or three days and stitches are not needed. Hair begins to grow within 3 to 4 months after surgery at a monthly growth rate of 1 cm.