OHSU study finds COVID vaccines can impact menstrual cycle length
February 29, 2024
In a new study, OHSU researchers have found that individuals receiving a COVID-19 vaccine during the first half of their menstrual cycle are more likely to experience slight, temporary cycle length changes than those receiving a vaccine in the second half. The study's lead author, Alison Edelman, M.D., says: "Understanding these changes on a population level allows us to more effectively counsel patients about what to expect with a COVID-19 vaccine. We hope this work helps validate the public’s experiences and ease fears and anxiety around vaccination."