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The COVID-19 Vaccine and the Menstrual Cycle

Health care workers answer questions about the COVID-19 vaccines.

Jessica Malaty Rivera, MS explains what we know about menstrual cycles and COVID-19 vaccines.

I know that in menstruating women, it has been reported to interrupt or cause irregular cycles. And that typically resolves in a few months. But, because of that, we have to remember too that our endometrium, that part of that lining of our uterus is actually part of our immune response. And, so, an irregular cycle or some weird spotting or some weird bleeding, it’s actually not that out of the norm.

This information is shared for educational purposes only and should not be used as a substitute for professional medical advice. The views expressed are those of the featured medical professional and reflect information available to that professional at time of filming. Always consult a health care provider for any personal health decisions. Click here for vaccine FAQs from the CDC.

Stay up to date with your COVID vaccine, including boosters!

COVID vaccines are safe and effective for everyone ages 6 months and older.

Immunity wanes over time. Keep up your protection against COVID by getting boosted when eligible.

Updated (bivalent) boosters are now available for adults and children 6 months and older.