Telogen Effluvium Following Coronavirus Disease-2019 Infection: A Retrospective Study of 113 Cases.

Namrata Chhabra, C Anju George, Satyaki Ganguly

Other International journal of trichology 2025

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Study Design

Study Type: retrospective observational
Sample Size: 113

Intervention: Telogen Effluvium Following Coronavirus Disease-2019 Infection: A Retrospective Study of 113 Cases. None
Comparator: Placebo
Effect Direction: Neutral
Risk of Bias: Moderate

Abstract

BACKGROUND: Telogen effluvium (TE) is self limiting diffuse hair loss occurring 3-4 months after a triggering event. There is scarcity of data on TE as possible sequelae of COVID-19. METHODS: We assessed 113 cases of TE occurring after SARS-CoV-2 infection as a retrospective study. RESULTS: Most of the patients belonged to the age group 18-30 years and were females (85.8%). Most of the patients (92%) had acute TE. The median duration of hair loss was 2 months. Trichodynia and pruritus were the common associated complaints. Hair pull test was positive in 54.9% patients. Trichoscopy showed short regrowing hairs in 61.2% patients and empty hair follicles in 77.9% patients. Ferritin, vitamin D and Vitamin B12 deficiency was seen in 27.4%, 38.1% and 20.4% patients respectively. TE was seen more commonly with symptomatic COVID infection (93% patients). CONCLUSION: TE occurring after SARS-CoV-2 infection calls for assessment of micronutrient deficiency, as there appears to be an association between COVID-19 infection and nutritional deficiency. Although acute TE is the most common presentation, relapse in chronic TE might also occur as sequelae of COVID-19 infection.