
A 19-year-old woman’s breasts stunningly grew from a B cup to a triple G within the six months following her Pfizer COVID-19 vaccination in what researchers are calling a first-of-its-kind case.
The unidentified “healthy young woman” reportedly began experiencing the rapid growth one week after getting vaccinated in September 2022 — and it worsened after her second dose.
“The patient believed that the vaccine caused her breast growth; nevertheless, her concerns weren’t adequately addressed by her primary care physicians, resulting in mistrust within the healthcare system,” Toronto-based researchers wrote last month within the Plastic & Reconstructive Surgery-Global Open journal.
The study authors pointed to the so-called “Pfizer boob job” phenomenon — some women claimed their breasts grew after getting the shot, but there’s no evidence that was the case.
The researchers report that while lymph node swelling is a “known side effect” of COVID-19 vaccination, changes to the structure or density of breast tissue are “exceedingly rare.”
The study authors said there’s only been one published case detailing distinctive breast changes after the Pfizer booster, and it was a noticeable lump. This woman didn’t have a lump.
The girl was found to have a really rare condition wherein a benign lesion called PASH causes extreme breast enlargement — fewer than 20 cases have ever been documented.
“This case is the primary to reveal a temporal association between PASH-associated gigantomastia and a vaccine,” the researchers wrote.
The Post reached out to Pfizer for comment.
The girl reported feeling a tingling in her breasts before they grew. Doctors didn’t notice hormonal changes in her blood work and prescribed her steroids and antibiotics to no avail.
Her breasts stopped growing after six months and he or she underwent reduction surgery five months later, in line with the case report.
She lost a whole lot of blood through the procedure, which limited the quantity of breast tissue surgeons could remove. She has double D breasts and will get one other breast reduction to return to her normal size.
The Toronto study authors are calling for further research to see if there’s a link between the COVID-19 vaccine, PASH and rapid breast growth.
Greater than 13.6 billion COVID-19 doses have been administered worldwide since 2020. A small proportion of those immunized were harmed by the shots, with medical professionals saying the advantages still outweigh the risks.

A 19-year-old woman’s breasts stunningly grew from a B cup to a triple G within the six months following her Pfizer COVID-19 vaccination in what researchers are calling a first-of-its-kind case.
The unidentified “healthy young woman” reportedly began experiencing the rapid growth one week after getting vaccinated in September 2022 — and it worsened after her second dose.
“The patient believed that the vaccine caused her breast growth; nevertheless, her concerns weren’t adequately addressed by her primary care physicians, resulting in mistrust within the healthcare system,” Toronto-based researchers wrote last month within the Plastic & Reconstructive Surgery-Global Open journal.
The study authors pointed to the so-called “Pfizer boob job” phenomenon — some women claimed their breasts grew after getting the shot, but there’s no evidence that was the case.
The researchers report that while lymph node swelling is a “known side effect” of COVID-19 vaccination, changes to the structure or density of breast tissue are “exceedingly rare.”
The study authors said there’s only been one published case detailing distinctive breast changes after the Pfizer booster, and it was a noticeable lump. This woman didn’t have a lump.
The girl was found to have a really rare condition wherein a benign lesion called PASH causes extreme breast enlargement — fewer than 20 cases have ever been documented.
“This case is the primary to reveal a temporal association between PASH-associated gigantomastia and a vaccine,” the researchers wrote.
The Post reached out to Pfizer for comment.
The girl reported feeling a tingling in her breasts before they grew. Doctors didn’t notice hormonal changes in her blood work and prescribed her steroids and antibiotics to no avail.
Her breasts stopped growing after six months and he or she underwent reduction surgery five months later, in line with the case report.
She lost a whole lot of blood through the procedure, which limited the quantity of breast tissue surgeons could remove. She has double D breasts and will get one other breast reduction to return to her normal size.
The Toronto study authors are calling for further research to see if there’s a link between the COVID-19 vaccine, PASH and rapid breast growth.
Greater than 13.6 billion COVID-19 doses have been administered worldwide since 2020. A small proportion of those immunized were harmed by the shots, with medical professionals saying the advantages still outweigh the risks.







