September 2024 in “Turkish Journal of Dermatology” A lower second to fourth finger length ratio may predict male alopecia areata.
November 2025 in “Journal of Medicine and Health Technology” No link between finger length ratios and color blindness was found.
8 citations
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April 2016 in “Anais Brasileiros De Dermatologia” Right hand finger ratio may predict male hair loss.
3 citations
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February 2019 in “Disease Markers” The index to ring finger ratio may indicate disease severity in female ankylosing spondylitis patients, but not in males.
December 2010 in “Jurnal Natural (Faculty of Mathematics and Natural Science, Syiah Kuala University)” Age, race, family history, and certain genetic factors increase prostate cancer risk.