Digit Ratio 2D:4D as an Indicator for Androgenetic Alopecia in Males

August 2017 in “ Journal of Cosmetic Dermatology ”

Mehmet Ünal

androgenetic alopecia AGA digit ratio 2D:4D prenatal androgen exposure male pattern baldness

TLDR Finger length ratio may indicate male hair loss.

The study investigated the relationship between digit ratio 2D:4D and androgenetic alopecia (AGA) in males. The left-hand digit ratio 2D:4D was found to be lower in AGA patients, indicating that it can be used as an estimation tool for AGA development in the future. However, there was no correlation between digit ratio and age of onset or AGA severity. The study suggests that prenatal androgen exposure may be linked to AGA development. Further studies with larger sample sizes are needed to confirm these findings.

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Research cited in this study

3 / 3 results

Digit-Length Ratios (2D:4D) as a Phenotypic Indicator of In Utero Androgen Exposure Is Not Prognostic for Androgenic Alopecia: A Descriptive-Analytic Study of 1200 Iranian Men

research Digit-Length Ratios (2D:4D) as a Phenotypic Indicator of In Utero Androgen Exposure Is Not Prognostic for Androgenic Alopecia: A Descriptive-Analytic Study of 1200 Iranian Men

3 citations , June 2016 in “Dermatology Reports”

Finger length ratios don't predict baldness in men.

research Are 2D:4D Finger-Length Ratios an Indicator of Androgenetic Alopecia in Males?

8 citations , April 2016 in “Anais Brasileiros De Dermatologia”

Right hand finger ratio may predict male hair loss.

research Male Androgenetic Alopecia

3 citations , March 2014 in “Turkderm”

Hair loss in men can be slowed or reversed with treatments like minoxidil and finasteride, but it resumes if treatment stops. It may also indicate early heart disease and obesity.

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