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Updated on August 7, 2022 6:30 pm
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Updated on August 7, 2022 6:30 pm

Global Statistics

All countries
Updated on August 7, 2022 6:30 pm
All countries
Updated on August 7, 2022 6:30 pm
All countries
Updated on August 7, 2022 6:30 pm
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Does Covid Vaccine Affect Menstrual Cycle

Understanding Vaccination And Menstrual Cycle

Does Covid Vaccine Shot Impact Fertility? Does It Affect Menstrual Cycle? Here Are Your Answers

For the study, Edelman and her colleagues looked at data from 3,959 people with normal cycle lengths who used a tracking app called Natural Cycles. Of the participants, 2,403 received either a Pfizer-BioNTech, Moderna or Johnson & Johnson COVID-19 vaccine. The remaining participants, 1,556, had not received a COVID-19 vaccine. The researchers examined three cycles before vaccination and the three during and after.

A healthy cycle is generally considered anywhere from 24 to 38 days and can vary up to eight days. After the first shot, a womans cycle was .71 days longer and after the second it was .91 days longer.

This is really reassuring. In the long run were not seeing anything that should prevent somebody from getting vaccinated. It just gives them more information about what to expect, Edelman said. Now we can tell folks you might have a slight change in your menstrual cycle length.

Experts agree that the findings should comfort those worried about infertility.

One of the major concerns among the unvaccinated were that they were afraid the vaccine was going to affect their fertility, Christine Metz, professor at the Feinstein Institutes for Medical Research at Northwell Health, who wasnt involved in the research, told TODAY. What this paper shows is that menstrual cycle length, which is a sign of a healthy reproductive state, is not changed by the vaccine. This is small, 7/10 of a day, change.

What Is Chemical Stress

Women who are taking medications for seizure disorders, diabetes, thyroid conditions, hypertension, depression or other conditions might notice irregularities with their menstrual cycles. These medications can interfere with the hormones that are responsible for menstruation. Some may even cause loss of menstruation, says Dr. Fyffe.

Menstrual Cycle Changes After Covid Vaccine Are Temporary

HealthDay Reporter

THURSDAY, Jan. 27, 2022 — They’ve gotten some media headlines recently, but potential menstrual changes associated with getting a COVID vaccine are typically minor and temporary, two new international studies confirm.

That’s great news for women, said an expert in fertility and reproductive health.

“The studies coming from the UK, US and Norway provide us with significance reassurance that the COVID vaccine benefits outweighs the risks and should strongly be encouraged in young women,” said Dr. Tomer Singer, medical director at Shady Grove Fertility Clinic in New York City.

Immunization is especially important, he said, because there are real and serious health risks “seen in unvaccinated pregnant women suffering from COVID-19.”

Even though multiple studies have found the vaccines have zero effect on human fertility, anti-vax rumors abound that somehow getting the shots could affect the reproductive system.

Many women have, in fact, reported menstrual changes after getting COVID-19 vaccines, and that’s prompted researchers to examine the issue. Dr. Victoria Male, a lecturer in reproductive immunology at Imperial College London in England, reported on data from two major studies in an editorial published Jan. 26 in The BMJ.

One of the studies included data on nearly 4,000 U.S. women who recorded at least six consecutive menstrual cycles on a tracking app. Of those, women more than 2,400 had received two COVID-19 vaccine doses.

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Vaccines And Period Changes

To date, none of the COVID-19 vaccine manufacturers list any issues pertinent to menstrual health as a side effect.

However, Dr. Male says more than 30,000 people reported menstrual cycle changes following vaccination to the MHRA. She explains that most people who report experiencing changes to their menstrual cycle say things typically return to normal by the next cycle. Importantly, there is no evidence that COVID-19 vaccination adversely affects fertility.

The author says that research is needed to determine a definitive link between the two and what is triggering that response in some people.

If there is a connection, it is likely to be a result of the immune response to vaccination rather than a specific vaccine component, Dr. Male writes.

Stress can disrupt the menstrual cycle and cause cycles to vary or even stop altogether. The immune response created by vaccines can cause this type of stress reaction.

According to Dr. Male, the lack of research on the effects of COVID-19 vaccines on periods is due to the relatively low occurrence of these reports.

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Does the Covid vaccine affect the menstrual cycle?

Clancy has since taken to social media multiple times to clear up misconceptions about her survey and what she’s studying as it relates to the vaccines and how they may impact menstruation.

Earlier this month, she replied to someone saying there was something “very wrong” with a vaccine that may prompt those in menopause to have a period by saying, “I gladly took the vaccine & hope others take it. Our research is to bear witness, look at associations, understand mechanisms.”

“Just as we deserve to know if we might get a sore arm, fever, or fatigue after the vaccine, menstruators deserve to know if there is any likelihood of menstrual changes. This is especially true for folks with endo, menorrhagia, etc.,” Clancy added. “If we find associations between certain menstrual experiences and timing of the vaccine, health history, etc, that could help clinicians advise menstruators on how to avoid or handle adverse effects.”

Health experts have noted that menstrual changes have been documented in recent months outside of vaccinations as well.

A study published in January found that 50 of 177 patients, about 28%, with COVID-19 and menstrual records reported changes to their cycles after contracting the coronavirus, while 25% reported changes to the volume of their menstruation. Some replying to Clancy’s initial tweet reported they too had seen changes to their periods after contracting COVID.

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Lack Of Medical Support An Issue

All of the contributors who responded to MNTâs queries said they had received little to no support from doctors when they sought help for long COVID symptoms, including disrupted periods.

Jean said that she received few explanations and even less support when she expressed her worries regarding her menstrual cycle.

âWith regard to my period, my just says itâs due to the stress that my body is going through due to this illness, while all other healthcare professionals do not care, since having periods is normal .â

â Jean

Bianca said she was much less successful in receiving expert care. âI have seen my doctor, but not just the period change, but for overall post-COVID help, and unable to help me. immediately dismissed any COVID relationship ,â she told us.

This dismissal led Bianca to worry about other possible reasons for the changes, such as breast cancer. She underwent a costly mammogram, which revealed she was cancer-free.

According to Bianca, her doctor rejected her worries about COVID-19 because she had been unable to take a test to confirm she had contracted SARS-CoV-2, the virus that causes this disease.

âI had COVID-19 in April 2020, and own hospital said I did not qualify for COVID testing then because I had not been out of the country or near anyone who had been. And then they said I had symptoms consistent with COVID-19 and had for 2 weeks,â she recounted.

âI didnât dare to discuss more my issues with as they always dismiss ,â she told us.

Taking Back The Monthly Menstrual Period

Whether or not you have been sick with COVID-19 or received a vaccine, if you experience a change in your periods during the pandemic, the first step is to consider whether you could be pregnant. If you confirm that youre not expecting and you miss a period for a month or two but youre otherwise feeling fine, its not something to panic about, Streicher says.

RELATED: Should You See a Doctor for a Heavy Period?

The changes may be due to the stress of the pandemic or to changes in your lifestyle habits. Still, its wise to check in with your ob-gyn, Streicher says. Most reports about irregular periods during a COVID infection are anecdotal. There are no studies that document menstrual changes beyond what is expected from other illness, and reassuringly, irregular cycles return to normal within a few months, she says.

The International Federation of Obstetrics and Gynecology put out a statement that “there is no reason to think that SARS-CoV-2 has any impact on abnormal uterine bleeding of any type, including the symptoms of heavy and/or irregular menstrual bleeding.” Getting some advice and reassurance about this issue will give you one less thing to feel stressed about.

Additional reporting by Monroe Hammond.

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Putting The Figures Into Perspective

The 30,000 reports of disruptions to periods after COVID-19 vaccines to the UK’s Medicines and Healthcare products Regulatory Agency received since the vaccine programme was introduced in January might sound concerning. But statistics can be misleading. That same statistic means that with over 93 million vaccines given so far in the UK , 99.97% of women haven’t reported any change.

Since 2013 You Have Studied Female Health And Fertility Through The Presto Study Can You Tell Us A Bit About It

VERIFY: Yes, the COVID-19 vaccine could impact your menstrual cycle

Sure, happy to talk about PRESTO . So, PRESTO is a prospective cohort study and we recruit women in the quick inspection states that they are actively trying to conceive, but they are not pregnant yet. So the goal really is to identify a group of women who have just recently continued birth control, so they are not using any condoms or any kind of contraception and they are trying to conceive. We do advertise primarily on social media, so its very much an internet-based study, where all the recruitment occurs through the internet. So, we might put an ad on Instagram or Facebook or Twitter and prospective participants will see the ad, theyll click on the ad, theyll go to the Boston University website, and they can read more about the study.

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Eu Investigates Reports Of Menstrual Disorders After Mrna Covid Shots

A healthcare worker prepares a dose of the Pfizer-BioNTech COVID-19 vaccine in a vaccination center at the Confluent Hospital in Nantes, as part of the coronavirus disease vaccination campaign in France, March 18, 2021. REUTERS/Stephane Mahe

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Feb 11 – The European Medicines Agency’s safety committee said on Friday it was reviewing reports of heavy menstrual bleeding and absence of menstruation from women who had received COVID vaccines from Pfizer /BioNTech and Moderna .

The assessment was in view of reports of menstrual disorders after receiving either of the two vaccines, both based on messenger RNA technology, and it was not yet clear whether there was a causal link, the agency said.

It was not yet clear whether there was a causal link between the vaccines and the reports, the agency said.

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Menstrual disorders can occur due to a range of underlying medical conditions as well as from stress and tiredness, the EMA said, adding that cases of such disorders had also been reported following COVID-19 infection.

Vaccination against COVID-19 was linked with a small, temporary change in menstrual cycle length, according to a recent study funded by the National Institutes of Health, which collected data from nearly 4,000 users of a smartphone app that tracks menstrual cycles.

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New Study Shows Slight Shifts In Cycle Length Can Follow Vaccination

The studys findings seem to show that the disruption of cycles was temporary.

    Since widespread immunization against Covid-19 began last year, doctors and medical researchers have been fielding reports of painful cramps, delayed periods and other changes in menstrual cycles among some who got the vaccines. Now research confirms that the shots can affect menstrual cycles, with one recent study linking vaccination to a slight increase in menstrual-cycle length.

    Its reassuring that its small, Alison Edelman, a professor of obstetrics and gynecology at Oregon Health & Science University and one of the researchers who conducted the study, said of vaccines effect on menstrual cycles. Its also validating to individuals who experienced it.

    For the study, published Jan. 5 in the peer-reviewed journal Obstetrics & Gynecology, the researchers tracked six menstrual cycles of about 4,000 study subjects who had received thePfizer Inc. –BioNTech SE,Moderna Inc. orJohnson & Johnson vaccine or were unvaccinated. It showed that cycles were extended on average by less than a day after one vaccine dose, or up to two days for people who got two doses within a single cycle.

    Vaccination wasnt linked to a change in period length, nor were menstrual changes more common with any particular vaccine.

    Federal health agencies received 3,368 reports of changes to menstrual cycles in the Vaccine Adverse Event Reporting System. A vaccination site in Stamford, Conn.

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    Covid Vaccine Effect On The Menstrual Cycle: What Are The Reported Menstrual Irregularities

    It seems that most reports of the COVID vaccine effect on the menstrual cycle involve periods showing up earlier and being more painful than usual. But keep in mind that these reports of period changes are unofficial and unverified. It remains to be determined exactly why this is happening.

    Some period irregularities have been noted in women with COVID-19 infection, but nothing has been officially reported in relation to the vaccines. Unfortunately, theres nothing in vaccine clinical trial data regarding menstrual changes. More on why that is, below.

    What Does The Data Say So Far

    Can the COVID

    Again, the clinical trial data does not include anything about period changes in women who received the vaccine . However, the information available does not indicate that there were any menstruation-related side effects that were serious leading to hospitalization or surgery, for example.

    Also, there is no publicly available information to suggest that the COVID vaccines effect on the menstrual cycle after vaccination are long-lasting or serious. Researchers at the University of Illinois are currently collecting data on period changes possibly related to the COVID-19 vaccines in this survey. Hopefully, the results can shed some light on how commonly this is happening.

    At the end of the day, women should know this about the COVID vaccines effect on the menstrual cycle: You may experience period irregularities after getting vaccinated. As of now, there is no indication that these changes will persist or threaten your health. Experts confirm that the possibility of a change in your period should not be a reason to skip vaccination. If you experience a change in your cycle that persists, or if you have persistent, heavy bleeding, contact your healthcare provider to be sure its not related to something else.

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    Myth: Receiving A Covid

    FACT: Receiving a COVID-19 vaccine will not make you magnetic, including at the site of vaccination which is usually your arm.

    COVID-19 vaccines do not contain ingredients that can produce an electromagnetic field at the site of your injection. All COVID-19 vaccines are free from metals.

    Learn more about the ingredients in the COVID-19 vaccinations authorized for use in the United States.

    What Will Researchers Be Doing

    To learn whether there is a connection between vaccination and changes in menstruation, the Eunice Kennedy Shriver National Institute of Child Health and Human Development recently released a notice of special interest for researchers to compare the menstruation experiences of vaccinated and unvaccinated people. NICHD will support research focused on menstruation before and after vaccination and how vaccination as well as other factors, such as stress, might influence menstrual changes.

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    Can The Covid Vaccine Affect The Menstrual Cycle

    Following the rollout of COVID-19 vaccines across the country, there have been reports of people’s periods changing in some way after their jabs. This has understandably caused concern, among young women in particular. So are COVID-19 vaccination and period changes linked, and if so should you be worried?

    Reviewed byDr Sarah Jarvis MBE
    11-Oct-21·6 mins read

    The most common changes people have reported have included delays to periods, heavier periods than usual and unexpected bleeding, as well as increased fatigue and nausea around the time of their cycle.

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    Study Starting To See If COVID Vaccines Cause Menstrual Cycle Side Effects

    Lauren Wise: I just want to say how surprised I was to see so many comments on The Brink about this topic. Maybe I shouldnt have been so surprised ,but its pretty clear that menstruation is a really important health outcome for women and its great to see so many women talking about this. This is typically more of a taboo subject, but so many women have come out and expressed their experience about menstruation following vaccination and Im glad that their voices are being heard. There have been a lot of anecdotal reports, on various social media outlets, where women have said after vaccination theyve experienced changes in their menstruation, such as heavier menses, earlier onset of menses, or more painful periods. But in the clinical trials that came out looking at the effects of vaccination, they really just looked at life or death type outcomes and not reproductive outcomes like menstruation or fertility or even pregnancy outcomes. So, this is a very understudied area of investigation and Im really happy that the National Institutes of Health has decided to fund these additional studies, looking at the extent to which COVID vaccination has an impact on menstruation.

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    Why Such Research Is Difficult To Design

    But actually proving whether or not its possible that the vaccine could cause a minor menstrual disruption is very difficult because periods can be so variable from person to person and cycle to cycle, says Dr. Laura Riley, the chair of obstetrics and gynecology at New York Presbyterian/Weill Cornell Medical Center in New York City.

    The menstrual cycle itself is just so incredibly difficult to study, because there are so many other things that may impact it, Riley says.

    Factors like stress or minor illness can change the duration of a period or the amount of bleeding, and some people have irregular cycles all the time. Moreover, what constitutes a heavy period varies from person to person and is highly subjective. Just even thinking about how you would design that study to me is mind-boggling, Riley says.

    Edwards says the COVID-19 vaccine posed an especially difficult challenge for drugmakers. As the companies hurried to test the vaccines last year, safety monitors were focusing all their energy on spotting truly dangerous side-effects. I want people to understand that were not blowing them off, Edwards says, but we have some priorities that we have to have.

    The CDC says exploratory work to look into the issue is now underway, although the agency did not offer a timeline for when, or even if, a full study could be conducted.

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