Trichoscopic Findings of Androgenetic Alopecia and Their Association with Disease Severity

    March 2015 in “ Journal of Dermatology ”
    Ruiming Hu, Feng Xu, Yumei Han, Youyu Sheng, Sisi Qi, Ying Miao, Qinping Yang
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    Studysummary This study found that certain trichoscopic features like white peripilar sign, yellow dots, and scalp pigmentation are positively correlated with the severity of androgenetic alopecia in Chinese patients. Our plain-language summary of this paper — not a Tressless recommendation.
    This study examined the trichoscopic features of androgenetic alopecia (AGA) in Chinese patients and their relationship with alopecia severity. The study found that hair shaft thickness heterogeneity (HSTH) was seen in all male AGA (MAGA) patients and most female AGA (FAGA) patients, especially those with advanced FAGA. Brown peripilar sign (BPPS) was usually seen in early AGA, whereas white peripilar sign (WPPS), yellow dots, pinpoint white dots, scalp honeycomb pigmentation, and focal atrichia were positively related to the severity of AGA. The study concluded that HSTH is an essential criterion for diagnosing AGA and further studies are needed to establish changes in trichoscopic findings after AGA treatment.
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