<unk>  <unk> , also known as follicular transfer (FT), is one of two primary methods of obtaining hair follicles, naturally occurring groups of one to four hairs, for hair transplantation. The other method is called strip harvesting.<unk>  is an outdated term and has been redefined to Follicular<unk>  Excision. In 2018, Mejia published the updated guidelines adopted by the International Society of Hair Restoration Surgery. This name change came about to accurately describe the procedure which involves surgically cutting or incising a full thickness hair follicle skin graft with a circular scalpel , punch or motorized drill and subsequently carefully<unk> g it from the scalp to be placed in the donor balding scalp. Due to the new developments of incision punches and devices and a variety of different<unk>  techniques, it was necessary to more accurately define the procedure. Additionally, many places were incorrectly marketing the<unk>  procedure as a simple plucking of hairs and deceiving the public. The follicular<unk> s obtained by either method are the basic building blocks of follicular<unk>  transplantation (FUT).<unk>  was first described in 1988 by Masumi Inaba in Japan, who introduced the use of a 1-mm needle for<unk> g follicular<unk> s. Follicular<unk>  excision takes considerable time and expense to learn and to develop skills to a high standard. The first part of the procedure involves making an incision with a circular cutting punch around the hair follicle through the epidermis into the subcutaneous tissue in order to release the follicle from the underlying tissue. The hair follicle grouping or follicular<unk>  is a full thickness skin graft containing epidermis, dermis and fat. The graft is then subsequently extracted utilizing suction, or forceps or specialized aid to<unk>  instruments (ATOE) and carefully preserved until it is time to reimplant into the donor scalp or recipient area. Each follicular<unk>  is excised one at a time being very careful not to cut the underlying hair matrix cells and injure or fracture the graft with transection. Additional care must also be taken when<unk> g the grafts with forceps to insure the hair follicles are not crushed or manipulated too aggressively which could also affect the growth. Hence<unk>  requires careful attention to detail and time. Consequently many physicians are not able to excise as many grafts in one day compared to traditional FUT due to the time involved. The survival of follicular<unk> s upon cutting around the hair follicle and then<unk> g from the scalp is one of the key variables of successful hair transplantation. If follicular<unk> s are transected in the incision process, there is a greater likelihood that they will not survive the transplant, and the hair transplant will fail. While FUT procedures using strip-harvesting of follicular<unk> s typically guarantees a large number of non-transected follicular<unk> s,<unk>  procedures can, and often do, transect grafts, rendering them useless in a transplant.<unk>  harvesting is a surgical technique of grafts and may cause "pit" scarring, small, round, and typically white scars in the patient's donor area where the grafts have been removed. Follicular<unk>  excision generally has a quicker patient recovery time and significantly lower post-operative discomfort than follicular<unk>  transplantation (FUT). Additionally the risk of long term nerve damage, leading to chronic numbness and/or pain in the donor area, is significantly reduced with<unk>  vs the strip (FUT) procedure. Additionally,<unk>  provides an alternative to FUT when the scalp is too tight for a strip excision and enables a hair transplant surgeon to harvest finer hair from the nape of the neck to be used at the hairline or for eyebrows. However, with<unk> , the follicles are harvested from a much greater area of the donor zone compared to FUT, estimated to be eight times greater than that of traditional strip excision so requires patients to have hairs trimmed in a much larger donor area. Follicles excised from borderline areas of the donor region may not be truly "permanent," so that over time, the transplanted hair may be lost. Due to the scarring and distortion of the donor scalp from<unk>  it makes subsequent sessions more difficult, and grafts are more fragile and subject to trauma during placing, since they often lack the protective dermis and fat of microscopically dissected grafts.
Follicular unit extraction
Follicular unit transplantation
Hypophysectomy
Enucleation 
Rhinectomy
Quadrantectomy
Photoimmunotherapy
Labial frenectomy