Covid-19 vaccine not linked with period disruption

Covid-19 vaccination does not cause concerning changes to periods, research has found.

"These results rely on people recalling their previous menstrual experiences, and may include bias due to those who chose to complete the survey. Nevertheless, our results are reassuring that Covid-19 vaccination does not cause concerning menstrual changes, and helpful for identifying people who might be at higher risk of experiencing menstrual disturbance."