Another Way to Look at Donor Harvesting Effects with FUE

    November 2016 in “ Hair transplant forum international ”
    Paul T. Rose
    Image of study
    TLDR Only about 14% of hair follicles can be safely removed in hair transplants without affecting the surrounding area.
    The 2016 research article by Paul T. Rose, MD, JD, FISHRS, discussed the effects of Follicular Unit Extraction (FUE) on the donor area in hair transplantation. The author challenged the common belief that 40-50% of the donor area follicular units (FUs) can be removed without significantly affecting hair density. Instead, he suggested that only about 14% of FUs can be harvested without affecting adjacent FUs, based on densitometry images. This would equate to 1,800-2,200 grafts for a person with an average FU density of 80 FUs/cm2. The author warned that harvesting adjacent FUs could result in visible areas of hairless skin of 6mm2 or more, contradicting the perceived benefit of FUE allowing patients to wear their hair short without evidence of surgery. He also noted that patients with finer hair, low hair density, and fewer 3- and 4-hair FUs are at higher risk of appearing to have thinning hair. The author recommended discussing the potential for thinning and scar creation with patients before performing FUE.
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