TLDR Good-looking donor sites for hair transplants usually have higher hair density and thicker hair.
In the 2020 study involving 103 male patients with androgenic alopecia, researchers found that a visually appealing donor site in FUE hair transplantation correlated with higher hair density and thicker hair diameter. The study divided participants into three groups based on donor site appearance: Good, Fair, and Poor. The Good group, with 72 patients, had a significantly higher hair density (127.8±22.6 hair/cm²) and hair diameter (0.0968±0.0267 mm) than the Poor group, which had 10 patients with a hair density of 94.9±25.4 hair/cm² and hair diameter of 0.0473±0.0158 mm. To maintain a visually acceptable donor site after FUE, the study recommended that the hair density should not fall below 105.0 hair/cm², and no more than 22 hairs per cm² should be harvested. These results provide important guidelines for FUE hair restoration, especially for determining coverage in the Japanese population.
Cited in this study
6 / 6 results
10 citations
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July 2017 in “Archives of Plastic Surgery” Hair thickness decreases from the upper to lower areas of the back of the head, affecting hair transplant results.
24 citations
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40 citations
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July 2009 in “Journal of Cutaneous Pathology” AGA patients have fewer hairs and smaller follicles; T:V ratio above 4:1 may indicate AGA.
129 citations
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June 1999 in “Archives of Dermatology” African Americans have less hair density than whites.
83 citations
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April 1999 in “Dermatologic Surgery” The research found that for a typical hair density, about 11 square centimeters of donor scalp is needed to get 800 hair grafts for transplantation.
309 citations
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May 1993 in “Journal of The American Academy of Dermatology” Horizontal scalp biopsy sections effectively diagnose and predict MPAA, with follicular density and inflammation impacting hair regrowth.
January 2022 in “Springer eBooks” Platelet-rich plasma (PRP) is a promising treatment for hair loss, believed to extend the life cycle of hair follicles and prevent their shrinkage.
2 citations
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February 2020 in “Journal of Plastic Surgery and Hand Surgery” Good-looking donor sites for hair transplants usually have higher hair density and thicker hair.
May 2018 in “Journal of Investigative Dermatology” Topical tofacitinib is effective in promoting hair growth for non-scarring alopecia.
22 citations
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January 2017 in “Indian Dermatology Online Journal” Body hair transplants can treat baldness but differ from scalp hair and need more research on long-term results and side effects.
October 2012 in “Ain-Shams Journal of Surgery” The direction of hair implants doesn't affect the final direction of hair growth in baldness treatments.
32 citations
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July 2011 in “Facial Plastic Surgery” New hair transplant methods offer more natural results and better graft survival, with ongoing research to increase donor hair options.
2 citations
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June 2000 in “Journal of Oral and Maxillofacial Surgery” Hair transplantation techniques have improved over time, leading to natural-looking results and high graft survival rates, making it a popular treatment for hair loss.
