Evaluation of Hair Density in Different Ethnicities in a Healthy American Population Using Quantitative Trichoscopic Analysis

December 2017 in “ Skin Appendage Disorders ”

Mathew R. Birnbaum, Beth N. McLellan, Jerry Shapiro, Kenny Ye, Sophia D. Reid

hair density trichoscopic analysis trichoscopy hair disorders

TLDR Caucasians have the highest hair density, followed by Hispanics, with the lowest in individuals of African descent.

The study evaluated hair density among different ethnicities in a healthy American population using quantitative trichoscopic analysis. It included 99 Americans of Hispanic descent, 44 individuals of African descent, and 23 Caucasians. The results showed that hair density was highest in Caucasians (214 ± 28 to 230 ± 33/cm²), followed by Hispanics (169 ± 31 to 178 ± 33/cm²), and lowest in individuals of African descent (148 ± 25 to 160 ± 27/cm²). These differences were statistically significant. The study concluded that while trichoscopy is less accurate than invasive methods, it remains a reliable and quick tool for assessing hair density, and understanding ethnic variations can aid in diagnosing hair disorders and conducting related research.

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