What Is a Graft?

Most charge by the graft. I was wondering how much hair is a graft? Or is it just one hair? I was also wondering if you can transplant hair in places where it previously didn’t exist and how does that process work. I mean when you put the hair in a certain part, how does it just start growing? Also, is it permanant. And if you have no facial hair, can you transplant hair there? Will it grow like normal facial hair or after the first shave would it not return? Also, what happens to the hair that were taken from the back of the head, does that return to normal?

“Graft” can be defined as: living tissue surgically transplanted from its normal location in one part of the body into another part of the body in the same individual (an autotransplant, like hair or bone marrow transplants) or from one individual to another individual (like a kidney or heart transplant) and is expected to grow and function normally in its new location.

In hair transplantation surgery, a graft refers to a unit of hair or a group of hair follicles which naturally cluster together (a follicular unit) consisting of one, two, three, or sometimes four hairs. Typically, a graft equals or averages to about 2 hairs (see photo at right of average density, from the article Follicular Transplantation: Patient Evaluation and Surgical Planning?), but in individuals with very high densities, it might average as many as three hairs per follicular unit.

Hair (usually from the donor area of the scalp) can be transplanted to any part of the body, including the bald part of the scalp, beard, mustache, or eyebrow. It can even be transplanted to the tip of your nose and it will grow to as long as 6 feet (assuming that the growth phase of the hair lasts as long as 6 years or so)! The donor hair that was taken from the back of the scalp will not regenerate and you will then have either a small linear scar from where the strip of scalp was taken, or a series of small dot scars from where the graft was removed by FUE.

Prior to the 1950s, people incorrectly thought that the balding process was a result of a loss of blood supply, because the skin of the bald scalp was not flush with blood vessels, though that notion was killed by clinical scientists who showed that it was a genetic process, not a blood supply process. It was a relatively simple proof. If there was a blood supply problem, the transplanted hair would have died. Instead, the transplanted hair placed in the bald scalp grew well and the blood supply returned to supply the needs of the new hair at its new location.