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- 30,000 women have reported that their periods are changed after receiving the COVID-19 vaccine.
- Research is needed to understand why this is happening, according to an article in the British Medical Journal.
- Periods can be heavier or delayed due to an immune response and are safe for the body, experts say.
Since the rollout of COVID-19 vaccines, thousands of women in the UK have said their periods have been disrupted, experts say.
More than 30,000 women said their menstrual cycles were somewhat altered after receiving the COVID-19 vaccine, Sky News reported.
The UK’s yellow card system, where people can voluntarily report side effects from any medication – including vaccinations – has shown that many women have had their periods disrupted.
Dr Victoria Male, reproductive immunologist at Imperial College London, wrote in the British Medical Journal that although these changes are safe and short-lived, said an investigation into why this occurs is crucial.
In the United States, the National Institute of Health is investing $ 1.67 million to understand the impact of COVID-19 vaccines over time periods.
Dr Male says periods can be heavier or delayed due to an immune response and are safe for the body.
“Solid research into this possible adverse reaction remains essential to the overall success of the vaccination program. An important lesson is that the effects of medical interventions on menstruation should not be an afterthought in future research,” wrote Dr. Male.
Writing in The Telegraph, Caroline Criado-Perez, author of Invisible Women, said: “As with most clinical studies, Covid-19 vaccine trials have not investigated the effects of the menstrual cycle – in fact, in many trials, women are totally excluded because potential effects on the menstrual cycle. “
There is no reason to be significantly concerned about menstrual changes and long-term impacts, writes Dr Male, as the vast majority of those who report post-vaccine alterations say normalcy follows quickly. .
Meanwhile, available data shows the COVID-19 vaccine has no adverse effects on fertility and pregnancy.
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