COVID-19 Vaccines Can Make Women’s Periods Longer: Study

Medical staff and volunteers prepare shots of the Moderna Covid-19 vaccine PA

A study shows that COVID-19 vaccines can make women’s periods last longer, coming months after another paper found the shots are linked to increased menstural bleeding.

In a study published Sept. 27 in the British Medical Journal, researchers documented how COVID-19 vaccines can alter menstrual cycles and how long the impact could last.