Hair Loss and Hair Restoration Glossary of Terms
The top back portion of the head which includes the spiral/whirl which feeds the direction and angle of the hairs on the back and sides of your head.
donor area - [doh-ner air-ee-uh]
A place on the back of the head where permanent hairs are harvested for a hair transplant. These hairs have been genetically pre-programmed to not be sensitive to the hormone conversion that causes hair loss on the top of your head from genetic male pattern baldness.
follicular unit - [fuh-lik-yuh-ler yoo-nit]
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A naturally occurring bundle of hairs which everybody has. This bundle of hairs ranges in density from person to person and the range may be between 2 to 4 hairs per bundle (mathematically, the hair transplant industry standard is 2.5 hairs per follicular unit).
follicular unit extraction (FUE)
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The process of removing a single follicular unit from the donor area using a punch biopsy intrument.
follicular unit hair transplant
A hair transplant soley dedicated to the use of micrografts and follicular units exclusively.
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The frontal hairline is the beginning portion of the hair on the top of your head that frames the face.
genetic hairloss
See Male Pattern Hairloss.
Hair bearing skin from the donor area in the back of the head. A graft/hair graft can be composed of a single hair or multiple hairs. These grafts are harvested from the donor area.
hair follicle - [hair fol-i-kuhl]
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A single strand of hair including the bulb of the follicle, root and sebaceous glands.
hair harvesting
The process of removing the permanent hairs from the donor area during a hair transplant.
Also known as doll plugs, a hair plug is a slang term for old hair transplant technology where large punch grafts were harvested from the donor area and transplanted to the balding areas on the top of the head. In the past they would punch out an area from the donor area and punch out an area in the recipient area and "plug it in" hence the term "plugs". Due to the large size of these grafts (hair range of 15-25 hairs) these grafts would have to be spaced cautiously to ensure the blood supply to these newly transplanted grafts. The result was very unnatural looking much like that of a child's baby doll. These older style grafts also cause scarring around the graft contributing to its unnatural look.
male pattern hairloss (MPH)
Hereditary genetic hair loss. Individuals who are affected by this are susceptible to a hormone conversion of testosterone converting into DHT as they age. The frontal vertex and crown on the top of the head are susceptible to this hormone conversion.
A one hair graft.
multiple follicular unit graft (bundle)
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A graft containing more than one follicular unit. These grafts will usually contain 2 to 3 follicular units having hair counts ranging anywhere between 4 - 8 hairs. THESE ARE NOT PLUGS, these are SLIT GRAFTS just the same as in micrografts or follicular units.
punch biopsy instrument
Instrument used to either remove hair from the donor area for transplantation or to make a space in the recipient area to implant a graft. These instruments have various shapes and sizes with many different ranges for different hair types and hair density.
punch graft
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A punch graft is a graft that was harvested or implanted by a punch biopsy instrument.
recipient area
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The area that will be implanted with donor hair.
slit graft
A graft that is placed into a paper cut incision that is sized according to the graft being implanted.
The area beneath the frontal hairline on both sides of the head that are above the sideburns and come in all different shapes and sizes.
The vertex is the area between the frontal area and the crown which represents the top portion of the head.
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