The Association of Hair Loss and Coronavirus Infection COVID-19 – Facts and Hypotheses

The document reviews the association between hair loss and COVID-19, identifying three common types of alopecia in patients with or post-COVID-19: acute telogenic, alopecia areata, and androgenetic alopecia. Acute telogenic hair loss is most frequent and may be linked to nervous system damage, while alopecia areata post-COVID-19 often indicates a relapse with a higher prevalence in women. Androgenetic alopecia could suggest a higher risk of severe COVID-19. The document also notes that hair loss may be associated with COVID-19 vaccination, potentially indicating an inadequate immune response to the vaccine. The mechanisms behind SARS-CoV-2's impact on hair follicles are complex and not fully understood, but studying them could provide insights into the virus's effects on other tissues and organs.