A 19-year-old woman’s breasts stunningly grew from a B cup to a triple G in 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 started 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; however, her concerns were not adequately addressed by her primary care physicians, leading to mistrust in the healthcare system,” Toronto-based researchers wrote last month in 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 did not have a lump.
The woman was found to have a very rare condition in which a benign lesion called PASH causes extreme breast enlargement — fewer than 20 cases have ever been documented.
“This case is the first to demonstrate a temporal association between PASH-associated gigantomastia and a vaccine,” the researchers wrote.
The Post reached out to Pfizer for comment.
The woman 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 she underwent reduction surgery five months later, according to the case report.
She lost a lot of blood during the procedure, which limited the amount of breast tissue surgeons could remove. She has double D breasts and may get another 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.
More 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 benefits still outweigh the risks.
