Time of Onset and Duration of Post-COVID-19 Acute Telogen Effluvium

The document reports a study on the onset and duration of acute telogen effluvium (TE), a form of hair loss, following COVID-19 infection. The study included 30 patients, with a median age of 40.5 years, who were diagnosed with TE after a confirmed COVID-19 infection. The median time for the onset of TE was 45 days post-infection, and the median duration of TE was 47.5 days. This suggests that TE can occur sooner and resolve faster post-COVID-19 compared to TE triggered by other events. The study also notes that factors like hypoxia, inflammation, and medication could influence the development and severity of TE. The findings indicate that clinicians should consider a previous COVID-19 infection as a potential cause for TE during the pandemic, despite the study's limitations, including the small sample size and the possibility of other causes of TE.