by Brenda Baletti, Ph.D., Childrens Health Defense:

Assessing the effects of COVID-19 vaccines on menstrual cycles is important, because the menstrual cycle is a significant indicator of women’s health, according to the authors of a review published in BMJ Sexual & Reproductive Health, who found most studies show the vaccine affects cycles.

Women experienced menstrual cycle disruption following COVID-19 vaccination, including changes in cycle length, flow and menstrual pain, according to a new “state of the science” review published Monday in BMJ Sexual & Reproductive Health.