April 2023 in “Our Dermatology Online” Trichoscopy is effective in diagnosing trichotillomania by showing specific hair patterns.
November 2025 in “Aesthetic Plastic Surgery” This meta-analysis found that while PRP therapy may result in higher patient satisfaction and better negative hair pull test results, it shows no clear advantage over minoxidil in terms of hair density or regrowth in androgenetic alopecia treatment.
September 2023 in “PubMed” In this study, researchers found that platelet-rich plasma therapy demonstrated significantly higher efficacy than topical minoxidil for treating androgenetic alopecia in a Pakistani population, with a 91.7% negative hair pull rate compared to 69.4% for minoxidil after 12 weeks.
January 2019 in “Journal of Datta Meghe Institute of Medical Sciences University” In this study involving 20 patients with androgenic alopecia, monthly platelet-rich plasma injections over six months significantly improved hair loss, increasing the average hair follicular units from 60 to 84 and resulting in negative hair pull tests for 17 patients.
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July 2021 in “Anais Brasileiros de Dermatologia” This study suggests that observing the acute telogen effluvium triad—frontal fringe, temporal recess, and occipital fringe—can aid in diagnosing telogen effluvium during resolution phases, despite challenges like negative pull tests.