Wall Street Journal | wsj.com
Since widespread immunization against Covid-19 began last year, doctors and medical researchers have been fielding reports of painful cramps, delayed periods and other changes in menstrual cycles among some who got the vaccines. Now research confirms that the shots can affect menstrual cycles, with one recent study linking vaccination to a slight increase in menstrual-cycle length.
Read More: Covid-19 Vaccines Linked to Menstrual Cycle Changes (behind paywall)