Association between menstrual cycle length and covid-19 vaccination: global, retrospective cohort study of prospectively collected data.
Alison EdelmanEmily R BonifaceVictoria MaleSharon T CameronEleonora BenharLeo HanKristen A MattesonAgathe Van LamsweerdeJack T PearsonBlair G DarneyPublished in: BMJ medicine (2022)
Covid-19 vaccination is associated with a small and likely to be temporary change in menstrual cycle length but no change in menses length.