The Use of 2D:4D Digit Ratio as a Predictor of Androgenetic Alopecia: A Review

    October 2023 in “ Dermatology practical & conceptual ”
    Mohammed Almashali, Khalid Alekrish, Asem Shadid
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    TLDR Finger length ratios might help predict common hair loss.
    Androgenetic alopecia (AGA) is a common hair loss condition affecting both genders, with age and genetic susceptibility being potential risk factors. The review discusses the use of the 2D:4D digit ratio, a measure of the length ratios between the index and ring fingers, as a predictor for AGA. This ratio has been used to predict various hyperandrogenism-related medical conditions. The review examines the evidence supporting the relationship between the 2D:4D ratio and AGA, discusses its diagnostic implications, and identifies potential areas for future research.
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