Evaluation of trichoscopic features in female pattern hair loss

Abstract

Female pattern hair loss (FPHL) is explained by decrease in hair fiber production and their eventual miniaturization. It is considered a counterpart of male androgenetic alopecia but the role of androgens in its pathogenesis is yet to be proven. To evaluate the trichoscopic features in females with patterned hair loss. Inclusion and exclusion criteria were applied and 37 cases were enrolled in our study. Detailed history and clinical examination were done to establish the diagnosis. Trichoscopic examination was done after taking consent in diagnosed cases. On trichoscopy, hair diameter variability, peri pilar sign, white dots, scalp pigmentation and focal atrichia was observed in 62.2%, 62.2%, 40.5%, 45.9% and 40.5% respectively. Most common trichoscopy finding observed was peri pilar sign and hair diameter variability in 23/37 females. Definitive diagnosis of FPHL is difficult to be established solely on the basis of clinical examination. Thus, trichoscopy serves as a non-invasive tool to ascertain the diagnosis in these patients.