Follicular unit extraction (FUE). With this technique, each whole follicular unit is painstakingly removed from the donor location one at a time. FUE is preferred because it causes less discomfort, which may explain why it is used more frequently.
Follicular unit transplantation (FUT). In this technique, a surgeon takes a small strip of tissue from the back of the head and extracts hair follicles from that tissue. A follicular unit refers to a compact cluster of multiple hair follicles that can emerge from the skin through a single exit point
Both procedures require the removal of 2,000 to 5,000 hair follicle grafts or more from the back of the head usually at ear level or somewhat below, and their subsequent transplantation to the facial region. A hair follicle that has been transplanted is represented by a graft.
