TLDR COVID-19 vaccination does not significantly increase the risk of developing alopecia areata.
This study reviewed the incidence of alopecia areata (AA) in a COVID-19-vaccinated population at a single-center hospital in California, identifying 73 cases of AA from December 17, 2020, to February 10, 2023. The odds ratio for developing AA among vaccinated individuals was 0.58, indicating no significant increase in AA incidence compared to the unvaccinated population. The study concluded that COVID-19 vaccination does not significantly increase the risk of developing AA and suggested potential protective effects or confounding variables. Limitations include its retrospective design and sample size, and further research is recommended.
6 citations,
September 2022 in “Vaccines” Some people developed alopecia areata after COVID-19 vaccination, but it's not caused by the vaccine and most improved with treatment.
34 citations,
October 2017 in “Archivos Argentinos De Pediatria” Alopecia Areata is a complex, unpredictable autoimmune hair loss condition with limited treatment options and a significant psychological impact.
421 citations,
April 2012 in “The New England Journal of Medicine” Alopecia Areata is an autoimmune condition causing hair loss with no cure and treatments that often don't work well.
3 citations,
August 2022 in “Curēus” The SARS-CoV-2 vaccine may be linked to triggering autoimmune conditions like Alopecia Areata.
February 2024 in “Recima21” Covid-19 can cause hair loss due to immune and psychological factors.
2 citations,
August 2022 in “JAAD case reports” COVID-19 vaccines may rarely worsen hair loss in people with severe alopecia, but the benefits of vaccination still outweigh this risk.
3 citations,
January 2023 in “Skin appendage disorders” Some people with a history of autoimmune hair loss experienced worsening symptoms after COVID-19 vaccination.
1 citations,
August 2022 in “JAAD Case Reports” A woman's complete hair loss condition improved after recovering from COVID-19.
