19 citations
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February 2013 in “The American Journal of Dermatopathology” This study found that follicular density and various hair growth ratios differ statistically between nonscarring and scarring alopecia, though significant overlap exists due to factors like sample size and scalp variation.
2 citations
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February 2020 in “Journal of Plastic Surgery and Hand Surgery” This study found that donor sites with higher hair density and thicker hair diameter had a better appearance after follicular unit excision in men with androgenic alopecia.
October 2025 in “Journal of Pharmacy And Bioallied Sciences” This study concluded that platelet-rich plasma significantly improves hair density and patient satisfaction for individuals undergoing follicular unit extraction for androgenetic alopecia compared to those receiving the surgery alone.
July 2018 in “Hair transplant forum international” This commentary discusses donor area alopecia resulting from follicular unit excision, noting that numerous small scars can lead to thinning in the donor area, and calls attention to this emerging issue.
February 2015 in “Dermatologic Surgery” This article discusses various affiliations of the authors with no reference to new research findings.