In several countries, women have reported menstrual disorders after being vaccinated against covid-19.

In Sweden, there are between 300 and 400 cases, according to the Medical Products Agency.

- These are menstrual abnormalities in connection with vaccination against covid-19.

It can be irregular menstruation, but it can also be about bleeding after menopause, says Ebba Hallberg, senior expert at the Medical Products Agency, to TT.

However, at present there is no established link between the vaccines and the menstrual abnormalities.

Several different reasons

- This is something we follow, but at present we can not comment on whether there is any connection with the vaccines or not.

This is also followed at EU level, but no support for a connection has been found there either, says Ebba Hallberg.

The current menstrual disorders can occur for a variety of reasons, she says, and also occur normally.

Also that women bleed after menopause.

- That is what makes it so difficult to know, what is normal or not, says Ebba Hallberg.

"Non-serious"

The vast majority of reports have been assessed as "non-serious" suspected side effects.

- It has not led to any hospital stay or been life-threatening.

In Sweden, most of the reports come from private individuals.

In Sweden, the number of reported cases is significantly lower, than in Denmark, for example, where more than 1,000 cases of menstrual abnormalities in connection with vaccination against covid-19 have been reported, according to the daily newspaper Berlingske.

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Is there a connection between menstruation and the covid vaccine?

Photo: The expert on the connection between menstruation and the covid vaccine