December 2022 in “JEADV Clinical Practice” Hair density and thickness decrease in specific scalp areas in people with androgenetic alopecia.
16 citations
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November 2013 in “European Journal of Dermatology” Hair gets thinner and grayer with age, and density decreases more in men on top and in women on top and back.
57 citations
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November 1987 in “Pediatric Dermatology” Children's hair grows in different types from before birth through puberty, with growth rates and characteristics varying by age, sex, and race.
24 citations
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September 2012 in “Dermatologic Surgery” The conclusion is that normal scalp hair counts for Taiwanese people were established, showing age-related differences but not sex or scalp location differences.
2 citations
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September 2017 in “Plastic and Aesthetic Research” Healthy Han Chinese have lower hair density than whites and Africans, and transplanting 300 hair units can nearly restore normal hair density.