Investigating the Relationship Between Androgenetic Alopecia and Hair Shape, Color, and Thickness: A Case-Control Study

    April 2025 in “ Health Science Reports
    Afsaneh Sadeghzadeh‐Bazargan, Alireza Jafarzadeh, A. El Ayoubi, Masoumeh Roohaninasab, Sara Dilmaghani, S H Salehi, Azadeh Goodarzi
    TLDR Smoking and lighter hair color increase alopecia risk, especially in women and those over 25.
    This case-control study investigated the relationship between androgenetic alopecia and hair phenotype, as well as demographic factors, in 100 participants (50 with alopecia and 50 controls). The study found that smoking and lighter hair color were significantly associated with increased susceptibility to alopecia, while no significant relationship was found with hair thickness or shape. Women showed a higher prevalence of alopecia than men, and the condition was more common in individuals over 25 years old. These results highlight the importance of considering demographic and phenotypic factors in understanding the development of androgenetic alopecia.
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