09/16/2021 10:14 AM
Clarín.com
Good Life
Updated 09/16/2021 10:14 AM
Changes in menstruation are not on the list of common side effects after vaccination against COVID-19, but the reproduction specialist at Imperial College London Victoria Male believes that
a link is
"plausible and should be investigated"
.
Reported changes in menstruation or vaginal bleeding after vaccination
"are short-lived"
and most women find that they return to normal in the next cycle, Male wrote in a comment published in The British Medical Journal.
And he insisted on an even more important issue: there is no evidence that vaccination with COVID-19 negatively affects fertility.
Vaccination is key in the sustained decline in covid cases.
Photo: Orlando Pelichotti
Possible association?
More than 30,000 notifications about changes in menstruation had been submitted as of September 2 to the UK Medicines and Health Products Regulatory Agency (MHRA), the author noted.
The MHRA states that its surveillance data
"does not support a relationship"
between changes in menstrual periods and COVID-19 vaccines, as the number of reports is low relative to both the number of people vaccinated and the number of people vaccinated. the prevalence of menstrual disorders in general.
However, Male considered that the way the data is collected "makes it difficult to draw firm conclusions."
Menstrual changes were reported for both messenger RNA-based and adenovirus vaccines, "suggesting that, if there is a connection, it is likely the result of the
immune response to vaccination
, rather than a specific component of the
vaccine.
vaccine".
The menstrual cycle can be affected by the body's immune response to the virus itself, he recalls, and a study showed the existence of menstrual disorders in around
a quarter of women infected with SARS-CoV-2
.
"If a link between vaccination and menstrual changes is confirmed," this will allow women to plan potentially disturbed cycles ahead of vaccination, he said.
The vast majority of vaccine-associated adverse events are mild and known.
Photo EFE / Juan Ignacio Roncoroni
The British expert also noted that doubts about vaccines among young women are largely due to
false claims
that they could harm their chances of pregnancy in the future.
For Male, not investigating "thoroughly" reports of menstrual changes after vaccination is likely to fuel those fears.
In addition, she considers that "an important lesson is that the effects of medical interventions on menstruation should not be an
afterthought
in future research."
In July, the Spanish Agency for Medicines and Health Products (AEMPS) also included changes in menstruation after vaccination against Covid in its seventh pharmacovigilance report, in which it noted that so far
no causal relationship had been found
between them. alterations and covid-19 vaccines, although it clarified that this aspect was under study.
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