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

Androgenetic alopecia (AGA) is a common hair loss condition that impacts both men and women. Age and genetic susceptibility are recognized as potential risk factors for developing AGA. The second to fourth digit ratio is a measurement of the length ratios between the index and ring fingers. This rat...

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Bibliographic Details
Published in:Dermatology practical & conceptual 2023-10, Vol.13 (4)
Main Authors: Almashali, Mohammed, Alekrish, Khalid, Shadid, Asem
Format: Article
Language:English
Subjects:
2D:4D
androgenic alopecia
Digits
hair loss
review
Online Access:Get full text
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Summary:Androgenetic alopecia (AGA) is a common hair loss condition that impacts both men and women. Age and genetic susceptibility are recognized as potential risk factors for developing AGA. The second to fourth digit ratio is a measurement of the length ratios between the index and ring fingers. This ratio has been utilized as a predictor for multiple hyperandrogenism-related medical conditions. More recently, the 2D:4D ratio was investigated as a predictor for AGA. This article will examine the evidence supporting this relationship, discuss its diagnostic implications, and identify potential areas for future research.  
ISSN:2160-9381
2160-9381
DOI:10.5826/dpc.1304a237