Is There an Association Between Male Alopecia Areata and the Ratio of Second to Fourth Finger Length?

September 2024 in “ Turkish Journal of Dermatology ”

Metin Özaslan, Tuğba Akın

alopecia areata 2D to 4D ratio finger length ratio

TLDR A lower second to fourth finger length ratio may predict male alopecia areata.

This study investigated the association between the second to fourth finger length ratio (2D to 4D) and male alopecia areata (AA) in 168 participants. The findings revealed that males with AA had a significantly lower 2D to 4D ratio in both hands compared to healthy controls, with the right hand showing a stronger predictive capacity for AA development. However, there was no significant correlation between the 2D to 4D ratio and the severity of AA. This research suggests that the 2D to 4D ratio could be a potential predictor of AA development.

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Is There an Association Between Male Alopecia Areata and the Ratio of Second to Fourth Finger Length?

Research cited in this study

research Alopecia Areata: An Updated Review for 2023

research Second-To-Fourth Digit Ratio and Age Predicting the Severity of Androgenetic Alopecia: A Cross-Sectional Study

research Hair Follicle Immune Privilege and Its Collapse in Alopecia Areata

research Second-To-Fourth Digit Ratio And Seborrheic Dermatitis In Males: A Cross-Sectional Study

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

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

research Androgen Actions on the Human Hair Follicle: Perspectives

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