Skip to main content

A prospective study of the association between SARS-CoV-2 infection and covid-19 vaccination with changes in usual menstrual cycle characteristics

Journal: Am J Obstet Gynecol
Lead Author: Wang, et al.
Original date of publication: 11/01/2022
Link: https://pubmed.ncbi.nlm.nih.gov/35841938/

Summary Context

Study of 3,858 women finds that covid vaccine, rather than the infection itself is associated with menstrual irregularities

Comments

This article is copyrighted by Health Freedom Defense Fund, Inc.
Visit our Re-post guidelines

This well-designed study looked at menstrual irregularities but stratified by vaccine type, previous covid-19 infection, and other details. Even after adjusting for confounding variables, the study found increases from both mRNA vaccines and viral vector vaccines.

Abstract or Results, Key Passages

” COVID-19 vaccination may be associated with short-term changes in usual menstrual cycle length, particularly among women whose cycles were short, long, or irregular before vaccination.” “Messenger RNA and adenovirus-vectored vaccines were both associated with this change. SARS-CoV-2 infection was not associated with changes in usual menstrual cycle characteristics.”

Keywords: adverse eventscovid vaccinationfatigueJohnson & Johnsonmenstrual bleedingmenstrual cycleModernamRNAOxfordPfizer
Full Author List: Siwen Wang, Jasmine Mortazavi, Jaime E Hart, Jennifer A Hankins, Laura M Katuska, Leslie V Farland, Audrey J Gaskins, Yi-Xin Wang, Rulla M Tamimi, Kathryn L Terry, Janet W Rich-Edwards, Stacey A Missmer, Jorge E Chavarro