The Predictive Value of Midscalp Hair Density and Terminal Hair Percentage in the Severity Evaluation of Female Pattern Hair Loss Assessed by Trichoscan in a Sample of Chinese Population

    Xianhong Yang, Wanting Yu, Rui Qiao, Jianfang Sun, Yiqun Jiang
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    TLDR Midscalp hair density and terminal hair percentage are good indicators of female pattern hair loss severity.
    The study involved 261 subjects with Female Pattern Hair Loss (FPHL) and 108 healthy controls. Using TrichoScan, it was found that hair density and terminal hair percentage decreased with increased severity of FPHL. The most affected areas were the midscalp, followed by the vertex. Hair density and terminal hair percentage in the midscalp area were the best predictors of FPHL, correctly predicting 70.1% of cases. A unique type of FPHL, with hair loss predominantly in the parietal areas, was identified in 15 subjects, indicating a need for further research. These findings could help clinicians identify early-onset FPHL patients and assign timely treatments.
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