Several women say they have experienced harder and more painful periods since COVID-19 vaccine, and several have also revealed that they had severe bleeding in the middle of a cycle after receiving the vaccine.
Dr. Kate Clancy, an associate professor at the University of Illinois, wrote on Twitter in February that he had heard of people who had experienced menstrual changes since receiving one or two vaccines.
Her Twitter thread prompted several women to share her menstrual concerns on Twitter, revealing their heavy flow, aggravated cramps and irregular schedule – with one saying she spent 16 days bleeding after Johnson & Johnson was shot.
Changes: Some women report heavier and more painful periods after COVID-19 vaccine (stock image)
Dr. Clancy first posted on February 24, but her thread continued to find other Twitter users looking for explanations for their symptoms.
“A colleague told me that she had heard from others that their periods were difficult post-vax,” she wrote.
“I’m curious if other menstruators have noticed changes? I have a week and a half apart from dose 1 of Moderna, I took my period maybe a day or so early and I jump as if I were 20 again.
“I’m on the 3rd day of the period and I still change extra-long tampons overnight several times a day. Typical for me at the moment is maybe one or two regular tampons (although extra absorbent, always Infinity) for the whole day, “she continued.
Does this have to do with how the vax response has a broader inflammatory response, possibly due mainly to lipid nanoparticles or the mRNA mechanism? Anyway, I’m fascinated! Inflammation + tissue remodeling = extra bleeding pants! she added.
Soon, other Twitter users shared their own experiences. Although many said that their periods did not change, many who took the time to comment reported differences.
Viral: Dr. Kate Clancy, an associate professor at the University of Illinois, wrote on Twitter in February that she had heard of people who had experienced menstrual changes.
The most common changes include harder periods and those that start in the middle of a cycle.
“I received J&J on March 15, then I started my period after about 2 days – a week earlier. It was harder than usual, ‘wrote one.
“Two weeks exactly after the number 2 shooting, my cycle started 12 days earlier and harder than it has been in the last three years,” said another.
“I’m 3 weeks away from my first shot at Moderna and I started my period in the middle of a BC package. This has never happened to me in the 12 years since I took the pill. I never even see between periods’, wrote another one.
“My period after the first dose of Moderna came a week earlier and was the most painful I’ve ever had,” he tweeted. “After the second dose, it came almost two weeks late and my cycle has been regular for years, so I knew it was the vaccine, but I was scared to say that.
“I thought I was going CRAZY,” said another. “I received the J&J shot three days before the start of the period and now it’s been … 16 days of bleeding (normal 5 days, then light but steady bleeding for the rest).”
And they: her Twitter thread caused several women to share their menstrual concerns on Twitter, revealing their heavy flow, aggravated cramps and irregular calendar.
‘And I!’ he wrote another. “I have an IUD and I haven’t had it in years, but I have cramps and I noticed today (the first dose of Pfizer was yesterday). No big deal, absolutely worth it, but weird!
Monica Grohne, the founder of Marea Wellness, said that her company “has heard from thousands of women about COViD and the vaccine that affects their periods.”
Others discussed their own experiences on Reddit, with hundreds of other commenters participating.
‘I had my first Pfizer vaccine on Friday, had painful breasts on Sunday and started my cycle yesterday. It’s two weeks earlier. I have been regularly as a watch on a cycle of 26-28 days since they started 25 years ago “, wrote one.
“Mine was on time, but very hard, which is not my norm,” said another.
To further investigate, Dr. Clancy has since created a survey that is open to adults who have had at least one menstrual period in their lifetime and have received at least one COVID-19 vaccine.
Side effects: Monica Grohne, the founder of Great Wellness, said her company “heard from thousands of women about COVID and the vaccine that affects their periods.”
Meanwhile, in the US, the Centers for Disease Control and Prevention has its own system for reporting vaccine adverse events.
According to Health, experts are not sure why some women could see changes in their periods and so far there is not enough data to know.
Infectious Disease Expert Amesh A. Adalja, MD, principal investigator at the Johns Hopkins Center for Health Security in Maryland, suggested that any additional pain may be related only to the normal pain of the vaccine.
Others have suggested that stress may be a factor.
“There is no biological mechanism to account for it [the] Interruption of the menstrual cycle after receiving the COVID-19 vaccine, Mark Turrentine, MD, professor of obstetrics and gynecology at Baylor College of Medicine in Texas, said.
He also said that the changes in the bleeding did not appear as a side effect during the clinical trials.
Although there are still no difficult data on post-vaccination periods, a small study of 177 patients, published in the journal Reproductive BioMedicine Online in January, found that 25% of those who had the virus suffered “changes in volume. menstrual ”and 19% had longer periods than usual.
Statistics: Women are more likely to report more serious side effects after receiving them than men, CDC data show
On Facebook, a global support group for long-term patients with COVID, with more than 22,000 women, hosts dozens of discussions about the sudden lack of periods and concerns about fertility.
A survey of more than 100 members with long COVID found that 80% reported that their periods had changed since COVID infection.
As for the vaccine, women are more likely to report more serious side effects after receiving it than men, compared to men, according to CDC data.
In February, officials analyzed nearly 7,000 reactions reported to the Vaccine Adverse Event Reporting System (VAERS).
They found that nearly 80 percent of reactions were reported by women, making them four times more likely to report a side effect than men.
This was true whether they received the Pfizer-BioNTech vaccine or the Moderna vaccine and it is despite the fact that women are less likely to fall seriously ill with COVID-19 than men.