Submitted by Harold Saive
Major Study Confirms COVID Vaccines Alter Women’s Periods
BY TYLER DURDEN – SATURDAY, JUL 16, 2022
Since Covid vaccines first became available more than a year and a half ago, women have been sounding alarms about the shots’ adverse effect on their menstruation.
Investigating trends in those who experience menstrual bleeding changes after SARS-CoV-2 vaccination
KATHARINE M. N. LEE HTTPS://ORCID.ORG/0000-0001-
15 Jul 2022 – Vol 8, Issue 28 — DOI: 10.1126/sciadv.abm7201
Early in 2021, many people began sharing that they experienced unexpected menstrual bleeding after SARS-CoV-2 inoculation. We investigated this emerging phenomenon of changed menstrual bleeding patterns among a convenience sample of currently and formerly menstruating people using a web-based survey. In this sample, 42% of people with regular menstrual cycles bled more heavily than usual, while 44% reported no change after being vaccinated. Among respondents who typically do not menstruate, 71% of people on long-acting reversible contraceptives, 39% of people on gender-affirming hormones, and 66% of postmenopausal people reported breakthrough bleeding. We found that increased/breakthrough bleeding was significantly associated with age, systemic vaccine side effects (fever and/or fatigue), history of pregnancy or birth, and ethnicity. Generally, changes to menstrual bleeding are not uncommon or dangerous, yet attention to these experiences is necessary to build trust in medicine.