Hair Loss Glossary from Beverly Hills Hair Restoration:
The medical term for baldness.
The most typical pattern of balding whereby the balding pattern is controlled by hormones and passed along via heredity.
During the procedure for alopecia reduction a strip of balding upper scalp in the crown and vertex areas is removed. Since the scalp is naturally flexible the surrounding hairy scalp can be stretched into place. It can be repeated in certain areas cases depending on suitable parameters.
The area in the top/back portion of the head which contains a swirl or spiral pattern of hair growth. Also called the vertex, it may be the first area where male pattern baldness is noticed.
Donor area is the fringe above the ears and around the back of the head. Here the hair follicles are genetically programmed to remain intact and grow throughout life.
It has been conceptualized that the hair follicles from the donor area have the ability to grow in the recipient area continuously.
FEMALE PATTERN BALDNESS:
Female pattern baldness is hereditary pattern of baldness. It is characterized by a diffuse thinning of hair and/or hair loss at the front portion of the scalp behind the frontal hairline. In females, slight recession of hairline or thinning in the temples may or may not be prominent. This is also called Female Hereditary Hair Thinning. Moreover, complete baldness at the top of scalp in females is very rare.
A follicular unit is a naturally occurring grouping of one, two, or three (and rarely, four) hair follicles found in the skin. The average follicular unit contains about 2.4 hairs.
FOLLICULAR UNIT EXTRACTION (FUE):
Follicular Unit Extraction is a method of extracting single follicular units, one at a time, from the donor site by using a tiny punch excision. A punch used to extract single follicular units is typically 1mm diameter or less.
FOLLICULAR UNIT GRAFT:
A graft consisting of a single follicular unit. In appropriate patients, artistic planning ? in addition to the correct angulation, orientation, and positioning of follicular unit grafts ? can yield an exceptionally natural appearance of the transplanted hair.
FOLLICULAR UNIT MICROGRAFTING:
A method by which large numbers of follicular units are harvested from the donor site (usually in a long strip or ellipse) and then microscopically dissected into grafts containing single follicular units.
A variety of procedures where hair-bearing skin is removed from the lower scalp at the back of the head-the donor area-and transferred to thinning or balding areas. The most popular varieties are micrografting (1-2 hairs) and minigrafting (3-8 hairs). A few surgeons selectively use round grafts which have 10-20- hairs each.
A theory that states only a limited or decreasing supply of hair exists, but the demand for hair increases as balding patterns develop.
Techniques to rotate large portions of hair from the sides and back of the scalp to the front and central areas of the head. Most effective when used with a tissue expander. See also Scalp Rotation Flaps.
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 follicles that have been harvested from the donor area and are ready for transplantation into the recipient area of the scalp. The numbers of hair follicles per graft vary widely depending upon the transplantation technique used. A graft may contain a single hair follicle, a single follicular unit, multiple follicular units, or even 20 or more follicles (as in a large round graft).
A slang term typically used to describe the large round grafts that were used more commonly years ago.
A surgical technique that transfers hair follicles from the donor area to the recipient area.
Hairline Refinement or Hairline Correction refers to the use of a variety of newer, more delicate grafting techniques to alter, camouflage or soften the pluggy looking results of older hair transplant techniques.
MALE PATTERN BALDNESS:
An inherited condition in men which is triggered by the hormone Dihydrotestosterone which causes gradual miniaturization (and eventual loss) of hair follicles. Starting anytime after puberty with a recession of the hairline and thinning of the crown areas, it can eventually lead to complete baldness at the top of the scalp. The areas around the sides and back of the scalp are not typically affected by male pattern baldness.
A graft containing 1 or 2 hairs, obtained from the donor area with a micropunch or sliced off from a round graft (see below). A micrograft is typically placed into holes made in the scalp with a microneedle or punch.
A graft containing 3 or 4 hairs (small minigraft) or 5 or 6 hairs (large minigraft). There are many variations of minigrafts derived from round grafts.
Grafts that contain two or more follicular units in a single graft. This term replaces the older minigraft. In practice today, MUGs contain 2-6 follicular units per graft.
Hair transplantation using multi-unit grafts. In practice, these grafts may be placed into small round holes, slots, or slits. This would always be in combination with the use of FUT in the same procedure.
Area where hair loss has occurred and hair follicles will be implanted during a hair transplant procedure.
The first type of graft used in hair transplantation, a round graft has many variations. Harvested with punches of various sizes, a large round graft may contain many hairs (20 or more). The round graft is obtained from the donor site by surgical removal and may be used as is or may be sliced into smaller sections for micro-, mini- or slit grafts.
A procedure that removes bald scalp and brings the edges of hair-bearing scalp closer together. Scalp reduction is most often used in patients with crown baldness. See also Alopecia Reduction.
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.
Hair obtained from a donor site directly or sectioned from a larger round graft is inserted into a slit made in the scalp by the tip of a scalpel blade.
The two upper outer corners where the forehead meets the hairline. This is usually the first area where male pattern baldness is observed, causing the hairline to recede.
The two triangular shaped areas of hair located in the lower outer corners of the forehead, where the temporal hairline meets the sideburns.
A reconstructive balloon-like device which can be used to enlarge hair-bearing scalp on the sides of the head, providing a larger supply of hair with which to replace the bald areas. Often used in hair flap techniques and scalp reductions.
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.
The area in the top/back portion of the head which contains a swirl or spiral pattern of hair growth. Also called the crown, it may be the first area where male pattern baldness is noticed.