NIH Awards $1.67M Grants to Probe Potential Links Between COVID-19 Vaccine, Menstrual Changes

A nurse administers a COVID-19 vaccine to a woman at Tableau restaurant in the French Quarter of New Orleans, La., on April 13, 2021. Chris Granger/The Times-Picayune/The New Orleans Advocate via AP

The National Institutes of Health (NIH) on Aug. 30 announced it has awarded one-year supplemental grants totaling $1.67 million to multiple institutions to investigate the potential links between COVID-19 vaccination and menstrual changes.

The announcement comes amid increasing reports among women who claim to have experienced changes to their menstrual cycle after receiving the vaccine. These changes range from irregular or missed menstrual periods to increased bleeding, among others.