What exactly do follicular transplant units, FUT, FUE, PUNCH technique, etc. mean? What is the difference between these methods? Follicular unit is a bundle of hair that consists of 1-4 long hairs and 1-2 fine hairs, sebaceous glands, erector pili, perifollicular vascular plexus, and collagen. FUT (Follicular Unit Transplanting) technique: A scalp strip with a hair follicle is surgically removed from the posterior occipital donor area, and the posterior occipital wound is then closed, leaving a thin linear scar on the posterior occipital area. The scalp strip is further divided into follicular units and implanted back into the hair loss area. The advantages of this technique: less hair damage and up to 3000-5000 hairs can be transplanted at one time. This should be the first choice for hair transplantation for larger areas of hair loss. However, there are disadvantages to this technique, which can lead to a thin line of scars left in the back of the occipital area. The First Affiliated Hospital of the Chinese People’s Liberation Army General Hospital Burn Plastic Surgery Department Wang Jiping FUE (Follicular Unit Extraction) technique: The FUE method is to use a circular drill to drill the hair in the posterior occipital hair donor area, and the postoperative posterior occipital wireless-shaped scars are left with small punctiform scars, but relatively more hairs are damaged when obtaining follicular units. the FUE method should not be used for The FUE method should not be used as the preferred method when the area of hair loss is large and the amount of hair transplantation required is high. It can be preferred for hair transplantation procedures such as repair of linear scars left in the back of the occipital area after the application of FUT or for smaller hair loss areas. PUNCH technique: A popular technique before the early 90’s, the hair is drilled with a ring drill, the area to be transplanted is also prepared with a hole of corresponding size with the ring drill, and then the graft is implanted. The PUNCH technique nowadays is a modified technique with smaller grafts.