The covid-19 vaccine is a vaccine intended to provide acquired immunity against the covid-19 pandemic. Around the world, Covid-19 vaccines have received emergency use approval from the relevant regulatory authorities in at least one country.
Common side effects of covid-19 are fatigue, fevers, headaches, and body aches. Some people have pointed out a potential side effect that feeds into existing arguments about the gender data gap in medical research: changing the menstrual cycle.
Information that ‘The time’ gathered demonstrates that the United Kingdom has received almost 4,000 reports of changes to people’s periods after a COVID-19 vaccine.
Due to these reports, many questions have emerged. How might a person’s menstrual cycle change after a vaccine? Are menstrual cycle and periods related together or COVID-19-related side effects, or are they due to stress and other environmental changes that might coincide with getting the vaccine?
However, “among the people who are experiencing this side effect, it seems like the most common is for people who are currently menstruating, they are experiencing heavier bleeding and sometimes longer periods and for people who are not currently menstruating, we’re also seeing breakthrough bleeding as another phenomenon.
Dr. Kathryn Clancy suggests that cortisol, the so-called stress hormone, could affect periods and that the changes to menstrual cycles may not be in response to the COVID-19 vaccines but to increased stress levels. But this is just a conjecture.