Follicular unit extraction, otherwise known as FUE is a method of hair restoration surgery where the surgeon will remove a small round graft including the hair follicles and then transplant the grafts into one of the balding areas of the patient's head. To understand the concept of density, one must have some basic knowledge of the scalp. In a human scalp, the average density of hair is around 100 – 125 follicular units in a square centimeter (cm2). Since each follicular unit varies in the number of hairs, studies have shown that about 160 – 250 hairs are present per cm2.
When an individual starts to notice their hair loss, they have lost approximately 50% of their hair in that given area. Each graft can contain 1, 2, 3, 4, 5 or even 6 hairs providing the patient has the available donor hair. Single and 2 hair grafts are utilized in the front hairline with which to create a soft, natural appearance.
We locate and utilize many of the bigger grafts to ‘implant’ behind the front hairline so that we can ensure the patient receives the highest density and volume possible.
Fortunately, in order to achieve a cosmetically excellent result, surgeons don’t need to transplant hair at fully natural densities, but they need to be able to transplant the grafts in a high enough density to appear as fully as aesthetically possible.