Hair restoration glossary
Hair Restoration : Glossary of Terms
· Alopecia: The medical term for baldness.
· Alopecia areata: Hair loss in sharply defined patches
· Alopecia totalis : An advanced form of alopecia areata that results in total hair loss of the scalp
· Alopecia universalis: Another form of advanced alopecia areata that causes hair loss over the entire body.
· Androgenetic alopecia: The most typical
pattern of balding whereby the balding pattern is controlled by hormones.
Traction alopecia: Hair loss caused by physical stress and tension on the hair, such as prolonged use of hair weaving or braiding.
· Anti-androgen therapy: Medical hair restoration treatment for women with hyperandrogonism, with cyproterone acetate or spironolactone.
Read Medical Hair Restoration
· Balding: Progressive hair loss caused by
genetic condition known as androgenetic alopecia.
· Catagen: The catagen phase is the resting phase of the hair growth cycle.
· DHI: Direct Hair Implants (DHI) technique a minimally invasive hair transplant procedure for follicular hair transplant.
· Donor area: The fringe above the ears and around the
back of the head where hair follicles are genetically programmed to remain intact
and grow throughout life. These follicels are suitable for hair transplantation.
· Donor dominance: The concept that hair follicles transplanted from the donor area will continue to grow in the recipient area.
· DHT (Di Hydro Testosterone): DHT is a male hormone
that is suggested to be the main cause for the miniaturization of the hair follicle
and for hair loss. DHT is formed when the male hormone testosterone interacts
with the enzyme 5-alpha reductase.
· Eye Brow Restoration: It is possible to
restore eyebrows utilizing the hair transplant technique using up to 500 grafts
(up to 1000 hairs) into one set of eyebrows in a single session.
· Female balding: Changes in the levels of
androgens after the hormonal changes during menopauseare are often responsible
· Female hair loss: Hair loss in women can occur in women for reasons other than female pattern baldness .
· Female-pattern baldness: A pattern of baldness found in women characterized by a diffuse thinning of hair, or hair loss at the front portion of the scalp in a rectangular pattern.
· Finasteride (Fi·nas·ter·ide): A
synthetic androgen inhibitor drug used primarily in men for the treatment
of benign prostatic hyperplasia and androgenetic alopecia, marketed
· Follicle: An infolding structure made of epidermis of the skin into the dermis surrounding the hair root.
· Follicular unit: When magnified, it is
possible to see that hair does not solely come out as single hair.
The follicular unit can consist of 2, 3 or sometimes 4 hair follicles.
· Follicular unit extraction: (FUE) The procedure for direct extraction of follicular units one-by-one using custom-made, precise micro-surgical tools less than a millimeter in diameter.
· Follicular Unit Transplant: Follicular hair transplant consists in removing a single follicular unit and transplanting on the donor site, mainly used for hair line construction.
· Grafting: A variety of procedures where
a strip of hair-bearing skin is removed from the back of the head - the "donor
area" - and transferred to the upper balding scalp. The most popular varieties
are micrografting (1-2 hairs) and minigrafting (3-8 hairs).
· Hair economics: A theory that states only a limited or decreasing supply of hair exists, but the demand for hair increases as balding patterns develop.
· Hair flaps: Techniques to transfer large portions of hair on the sides and back of the scalp to the front and central areas of the head. Most effective when used with a tissue expander. Hair flaps represent the fastest and most complete technique to eliminate baldness for appropriate patients.
· Hair follicles: A strand of hair and its root which is extracted from the donor area and transplanted to the recipient area during hair restoration surgery.
· Hair grafts: Groups of individual hair follicles extracted from the donor area for transplantation into the recipient area of the scalp.
· Hair line: The outline of the growth of hair on the head, especially across the upper forehead and temples.
· Hair plugs: Grafts consisting of 10-50 hairs each used in the early day of hair transplant surgery.
· Hair transplant: A surgical technique that transfers hair follicles from the donor area to the recipient area.
· Hamilton / Norwood: a graphic scale representing the
extent of hair loss / recession of androgenetic alopecia in males.
· ISHRS: The International Society of Hair Restoration Surgery is a non-profit voluntary organization for the advancement of the art and science of hair restoration surgery by licensed, experienced physicians.
· Keratin: Keratin is a type of protein that is present in the hair and nails.
· Ludwig staging: A graphic representation
of the severity of androgenetic alopecia in women, originally published in 1977
in the British
Journal of Dermatology
· Laser hair transplants: Transplanting hair grafts using laser as surgical tool. It is considered inferior to follicular unit graft procedure due to more bleeding and poor hair growth rate after the surgery.
· Male pattern baldness: A
genetic predisposition to lose hair at the crown or front portion of
usually caused by the male hormone testosterone. It is prevalent in
both males and females.
· Medical hair restoration: The treatment includes all drugs, medicines and surgeries available for restoring non genetic & genetically pre-disposed hair loss in men and women.
· Micro grafts & mini grafts: Hair grafts for transplantation consisting one- to two-hair grafts (micro grafts) or 3 to 4 hair (mini grafts) used for hair transplant restoration and reconstructive surgical hair restoration.
· Minnoxidil: A medication previously used
to lower blood pressure later approved by FDA in liquid form for treating
androgenetic alopecia, or hair loss. This topical hair loss treatment
is marketed as Rogaine.
· Non surgical hair restoration: Process of hair restoration without using transplants or grafts. Options may include drugs such as Propecia or Rogaine.
Read medical hair restoration.
· Norwood-hamilton classification:
A system of classification developed to assist in the identification of stage of hair loss in men.
· Pattern baldness: Hair Loss in both men
and women often follows a similar pattern among different individuals. Male
pattern baldness differs from female pattern baldness.
Propecia is the brand name of Finasteride used for hair loss treatment in men.
Porpecia can slow the loss of hair at the vertex (top of head)
and anterior mid-scalp area. Both minnoxidil and propecia can
used together as
a combination therapy to give better results.
· Recipient area: Area of the scalp where hair loss occurs and hair will be added in hair restoration procedures.
· Replacement therapy: The process of removing follicular units from the donor area back of the head , dissecting them under magnification into individual follicular units , and micro-grafts and transplanting the grafts at recipient site.
· Rogaine: Rogaine is brand name for the chemical drug minoxidil used in hair loss treatment.
· Scalp reduction: A procedure that removes bald scalp and brings the hair-bearing scalp closer together. Scalp reduction is most often used in patients with posterior baldness.
· Scalp rotation flaps: A type of procedure that involves the lifting and rotation of a strip of hairy scalp which is placed into an area of simultaneously removed balding skin.
· Telogen: The resting phase in the hair cycle.
· Testosterone: A predominantly male hormone which
promotes the development of male characteristics.
· Topically: Means to apply directly onto the scalp.
· Traction alopecia: This refers to hair loss which occurs due to traction being placed on hair. Traction alopecia is commonly seen with braids, pony tails and other hairstyles which cause tension on the scalp.
· Tissue expander: A reconstructive balloon-like
device which can be used to enlarge hair-bearing scalp skin on the sides of
the head, providing a larger supply of hair bearing skin with which to replace
the bald areas.
Often used in hair flap techniques and scalp reductions.
· Tissue extender: A device used to stretch scalp. Often used to speed up the process of scalp reductions by stretching the sides of the scalp that contain hair to achieve rapid elimination of bald areas. The tissue extender is temporarily inserted below the scalp and remains in place for a three-week period.