Trichoscopic Criteria of Female Pattern Hair Loss
February 2009
in “
Journal of The American Academy of Dermatology
”
Studysummary This study found that HLA-B*57 and HLA-Cw*06 were associated with increased risk of psoriasis vulgaris, while KIR2DL2 was more prevalent in controls, suggesting a protective effect.
Our plain-language summary. Not medical advice or a treatment recommendation. Consult a qualified healthcare professional before changing treatment. Full disclaimer
This study analyzed the differences in hair thickness and percentage of thin hairs between healthy controls, androgenic alopecia, and chronic telogen effluvium in 150 women. The study established diagnostic criteria for female androgenic alopecia based on trichoscopy criteria, including major criteria of increased number of yellow dots, thin hairs, and decreased average hair thickness in the frontal area, and minor criteria of increased frontal area to occiput ratio of single-hair units, vellus hairs, and follicles with perifollicular discoloration. The study concluded that the diagnosis of female androgenetic alopecia may be established based solely on trichoscopy criteria.
