Clinical and trichoscopic features of post-COVID-19 telogen effluvium
Keywords:
Telogen effluvium, Covid-19, Hair loss, TrichoscopyAbstract
Objective Telogen effluvium is the most common, self-limiting cause of alopecia. An association between telogen effluvium and COVID-19 has recently been reported. Methods This cross-sectional study included 75 patients at dermatology outpatient clinic. The patients were classified according to their COVID-19 history as mild, moderate, or severe. History was taken to assess the onset of hair loss. All patients were examined by hair pull test and assessed trichoscopically for the presence of follicles with a single hair, yellow dots, decreased hair density, peri pilar sign, empty hair follicles, and upright regrowing hair. Results The mean duration of hair loss in the current study was 8.55 weeks. Patients with higher severity of COVID-19 reported significantly earlier onset of hair loss. Pain and dystrophic anagen hair on pull test was observed in association with hair shedding in all patients with severe COVID-19 infection. Conclusion Post-COVID-19 telogen effluvium has a significant positive correlation with the severity of COVID-19 infection with earlier onset of hair loss, increased frequency of trichodynia, and dystrophic anagen hair.References
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