Clancy said it wasn’t until the National Institutes of Health recommended balanced recruitment for drug trials in the 1990s that women needed to be included in studies.
“We make a lot of assumptions about vaccines and side effects based off of data that doesn't actually represent all bodies,†she said.“There are biological and cultural effects to all sorts of different phenomena, and we really need to do due diligence to study these.".
Another study looked about 200 women with and without COVID-19 in China, that found “about a 20, 25% of them has some kind of changes in their menses whether the volume or the irregularity,†he said.And Bachmann said that people should report any menstrual irregularities to V-Safe, a health checker run by the Centers for Disease Control and Prevention to monitor side effects of COVID-19 vaccinesMenstrual changes weren’t noted as possible side effects during clinical trials but that could be because participants simply didn’t notice them or this smaller group didn’t experience them
While the data hasn’t been analyzed from the survey, Lee noted that anecdotally people have shared that their menstrual irregularities only seem to last for the cycles following the shots
“It's two doses that are generally going to land for most people into different cycles