After widespread concern that Covid-19 vaccines have been messing up menstrual cycles, a new study has found that periods are slightly and temporarily delayed by the inoculations.
Women who had been vaccinated, on average, experienced just under a day’s increase to their usual menstrual pattern, according to U.S.-government funded research published in the Obstetrics & Gynecology medical journal. The study comes at a time when some women have complained about off-set cycles, along with heavier and sometimes painful bleeding. It found that those who had both vaccine doses during the same cycle saw delays to their period become more pronounced at two days later than normal.
“These variances appear to resolve quickly, possibly as soon as the next cycle after vaccination,” lead author Alison Edelman, a professor of obstetrics and gynecology at the Oregon Health and Science University in Portland, said in a statement. “Our findings are reassuring. On a population level, the changes we are finding indicate no cause for concern for long-term physical or reproductive health.”
The study’s publication may help douse some anti-vaccine anxiety surrounding erratic periods that has long been circulating on social media. It’s still unclear why Covid vaccinations affect those cycles, which widely vary for many individuals over their lifetime, but largely last around 28 days for most.
Between October 2020 and September 2021, the researchers looked at anonymized fertility app data from just under 4,000 vaccinated and unvaccinated 18 to 45-year-old U.S. resident women.
Among the 2,403 who were vaccinated with American approved shots, the researchers studied data collected from three consecutive cycles before and 3 consecutive after they were given their shots. Six back-to-back menstrual cycles were analysed among the remaining unvaccinated cohort.
Covid Vaccines Can Delay Women’s Periods, Study Finds
After widespread concern that Covid-19 vaccines have been messing up menstrual cycles, a new study has found that periods are slightly and temporarily delayed by the inoculations.
www.bloomberg.com
Covid Vaccines Can Delay Women’s Periods, Study Finds - Bloomberg
archived 7 Jan 2022 16:07:56 UTC
OHSU News on Twitter: "“Our findings are reassuring. On a population …
archived 8 Jan 2022 19:48:28 UTC
