Please look rigorously at this image. You can see that the donor density is clearly lower than within the higher left nook, an space which was not harvested. People all the time ask me what’s my complete donor provide, nicely, this image reveals that with sufficient harvesting, the donor space turns into depleted of hair, skinny sufficient to be visibly noticed. How many grafts may be harvested earlier than the donor space appears to be like depleted, like on this man? That relies on not less than two main components and a few minor components as nicely.
1- Major Factors:
a) Remaining hair follicles. The common Caucasian man has 27,500 hairs in his donor space or about 12,500 grafts. If the hair depend is lowered by over 50% in an average-weight hair (50-micron thickness), then depletion begins to look the extra the hair depend goes down.
b) Hair thickness: The coarser the hair, the extra hairs may be faraway from the donor space. An individual with a hair thickness of 75 microns can most likely lose 60-70% of their hair earlier than donor depletion is a matter; nonetheless, if the hair thickness is 30 microns, then the lack of 50% of the donor hair will definitely look depleted.
2- Minor Factors:
a) Hair vs pores and skin colour. The nearer the hair colour is to the pores and skin colour, then extra hair may be safely faraway from the donor space; nonetheless, when the distinction is excessive (black hair in opposition to white pores and skin), then the variety of hair left behind should be larger than 50%.
b) Character of the hair: Straight hair might not be pretty much as good in protection, particularly whether it is high quality in character, whereas wurly or kinky hair covers nicely behind every single hair shaft.
Here is an instance of a person who had too many hairs faraway from his donor space. The solely need to deal with that is to (1) develop the hair longer within the hope that longer hair will act like shingles to cowl the areas the place it was once or (2) use SMP to alter the colour and of the areas within the donor space with what seems to be minimize hair follicles.
