After getting a dose of Covid-19 vaccine, women had an average menstrual cycle length of about one day longer than usual, according to a study published Thursday. The findings validate some claims from women across social media that the Covid-19 vaccine affected their menstrual cycle. But there is an individual relationship with the menstrual cycle that’s much more than clinical, Edelman said. However, they note that mRNA vaccines create a similar robust immune response that could affect the regulation of the menstrual cycle temporarily. “Most clinical research trials have not routinely collected information on how an intervention affects the menstrual cycle.

Source: CNN January 07, 2022 13:53 UTC