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Periods and Covid Vaccination Results

Thanks for participating in this survey!

If you've been vaccinated for Covid-19, did you experience any period or menstrual cycle changes?

How others have answered:

Yes - heavier or lighter flow

10%

Yes - longer or shorter cycles

12%

Yes - more cramps or spotting

2%

Yes - several of above

20%

No period or cycle changes

56%

If yes, how long have these irregularities lasted?

How others have answered:

Just one cycle

38%

A few cycles

23%

Don't know yet - ongoing

39%

Related Information

Some women have reported changes to their menstrual cycles after having the Covid-19 vaccination; For most, any changes have been short-lived, resolving after one or two cycles. The articles below have more details, including a study being done, according to NPR's article, by Kate Clancy of the University of Illinois and Katharine Lee of Washington University in which 140,000 women have participated so far.