March 2023 in “Human Pathology” This review found that while follicular hair counts and ratios assist in diagnosing non-scarring alopecia, they should be used alongside specific morphological features for accurate diagnosis.
July 2025 in “Journal of Dermatological Treatment” This study found that platelet-rich plasma significantly improved hair growth parameters in androgenic alopecia patients and was even more effective when combined with minoxidil, particularly in reducing vellus hair.
June 2023 in “Annals of the College of Medecine” This study found that childbearing women with telogen effluvium had significantly lower ferritin levels compared to healthy controls, and observed a strong inverse correlation between ferritin levels and the amount of hair shed, suggesting low iron stores may contribute to hair loss.
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September 2012 in “Dermatologic Surgery” The conclusion is that normal scalp hair counts for Taiwanese people were established, showing age-related differences but not sex or scalp location differences.
November 2025 in “American Journal of Tropical Medicine and Hygiene” In this study, researchers observed that approximately 1.15% of dengue fever patients experienced alopecia, predominantly among females. The hair loss usually occurred during the recovery phase and was often identified as telogen effluvium, with lower platelet count and hematocrit levels potentially serving as risk factors.
