April 2012 in “The Journal of Urology” Male pattern baldness may predict prostate cancer risk.
3 citations
,
February 2019 in “Disease Markers” The index to ring finger ratio may indicate disease severity in female ankylosing spondylitis patients, but not in males.
Digit ratio likely doesn't predict male hair loss.
June 2018 in “Biomedical Journal of Scientific and Technical Research” Men with lower 2nd to 4th finger ratios tend to have larger sinus volumes.
December 2022 in “The Aging Male” Lower 2D:4D ratio and older age increase the risk of severe hair loss in men.