Skip to content

Wednesday, Apr. 14, 2021

Is there any credible theory about how COVID-19 vaccines may disrupt menstrual cycles?

Lisa Freedland, Gigafact Foundry
no

Experts say that there is currently not enough evidence to establish any clear links between the COVID-19 vaccine and various disruptions to the menstrual cycle. A number of women have shared on social media anecdotes about disruptions or changes they’ve experienced after getting a vaccination.

Baylor medical professor Dr. Mark Turrentine tells Health magazine that there is “no biologic mechanism” that would account for the kinds of changes being discussed. He notes that no menstruation-related issues have surfaced in clinical trials for the vaccines or in “adverse event” reporting since the administration of vaccines at scale began.

An anthropology professor at the University of Illinois has launched a survey to collect reports from women observing any changes (or the lack thereof) in their menstrual cycles post-vaccine.

This fact brief is responsive to conversations such as this one.

Sources

About fact briefs

Fact briefs are bite-sized, well-sourced explanations that offer clear "yes" or "no" answers to questions, confusions, and unsupported claims circulating online. They rely on publicly available data and documents, often from the original source. Fact briefs are written and published by newsrooms in the Gigafact network.

See all fact briefs

Between 2020 and 2022, under close editorial supervision, Gigafact contracted a group of freelance writers and editors to test the concepts for fact briefs and provide inputs to our software development process. We call this effort Gigafact Foundry. Over the course of these two years, Gigafact Foundry writers published over 1500 fact briefs in response to claims they found online. Their important work forms the basis of Gigafact formats and editorial guidelines, and is available to the public on Gigafact.org. Readers should be aware that while there is still a lot of relevant information to be found, not all fact briefs produced by Gigafact Foundry reflect Gigafact's current methods and standards for fact briefs. If you come across any that you feel are out of date and need to be looked at with fresh eyes, don't hesitate to contact us at support@gigafact.org.

Learn More

Latest Fact Briefs

Be a Friend of facts

Help us fund more great fact briefs like this one.