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Does The Pfizer Vaccine Make Boobs Bigger? The Truth Behind TikTok’s Latest Rumour

This will either come as good or bad news.
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So, you’ve caught wind of the rumour on TikTok and Twitter that the COVID-19 Pfizer vaccine makes boobs bigger. And now you’re looking down at your pair either thinking ‘yes!!’ or ‘OMG, please no!’

WATCH: Camila Cabello fighting life’s dramas on TikTok.

Whatever camp you fall into, you’re likely curious about the truth behind this odd claim that’s circulating online.

On TikTok, thousands of girls are posting about either noticing their cup size increase or not seeing any changes (to their glee or disappointment), while some of those who received a different vaccine say they regret their decision.

TikToker Elle Marshall posted a video about her experience, which has amassed 75.6K likes, where she claimed that her A-cup breasts grew two sizes.

She wrote over her video, “Been an A cup my full life. Getting the Pfizer vaccine making my boobs grow almost two cup sizes.”

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Another TikToker shared a video making light of the rumours by joking about getting 17 doses of Pfizer so her boobs would grow.

“I heard that Pfizer vaccine can make your boobs bigger,” she wrote as if she is talking to someone.

Then in the following still, she’s walking into her room with her arm cradling her shoulder, with the message, “Me walking into the clinic for my 17th shot.”

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However, not all girls are noticing a difference, and one TikToker joked in a video of herself that she “Keeps seeing TikToks that girls that got Pfizer got bigger boobs bc of it,” but she got vaccinated in March and her boobs didn’t grow.

On Twitter, girls were also making light of the alleged side effect, with many revealing they didn’t notice anything, while others announced their boobs went back down to their original size.

One Tweeter posted, “Guys, Pfizer didn’t make my boobs bigger?? It’s been a month… I feel cheated.”

The news has spread far and wide, but what’s the truth? (Credit: Twitter)

Another wrote, “Just here to spread the bad news that my Pfizer boobs have officially gone away.”

Finally, another Tweeter revealed, “I really thought everyone talking about their boobs growing after the Pfizer jab was kidding, but all of a sudden, no clothes fit my chest.”

To uncover the truth, Girlfriend reached out to General Practitioner Dr Jill Forer for a statement about the viral internet phenomenon.

She said, “Since vaccination has started, regardless of which vaccine, AstraZeneca or Pfizer, I have noted that armpit lymph nodes have been swollen and can easily be seen on mammogram and ultrasound, especially on the side of injection. In addition, there are also inflammatory lymph nodes (inside the breast) which could theoretically also enlarge.

“Patients have also been reporting enlarged lymph nodes themselves.”

“Patients have also been reporting enlarged lymph nodes themselves.” (Credit: Instagram)

Dr Jill notes that there are other medications and medical changes that can cause breasts to grow.

“Other causes of enlarged breasts are changes in the menstrual cycle, oral contraceptive use and pregnancy.”

Finally, she confirms that if one does experience swelling, it’s not permanent.

“Yes, it does cause swelling, but it is temporary, and it normally goes away in about a week or two.”

It’s unlikely you will experience this because the Australian Department of Health’s document After Your COVID-19 Vaccination lists “enlarged lymph nodes” as one of the less common side effects.

So there you have it, a curious rumour debunked (and another reason to fact check everything you see on TikTok).

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