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140 - South Korean Study Links COVID Shot to Cancer Spike—What Every Physician Needs to Know

Coach JPMD Season 2 Episode 140

A 2025 South Korean study of 8.4 million people just linked COVID-19 shot to increased cancer rates—this data is impossible for physicians to ignore.

If you're a physician transitioning into independent practice, understanding emerging long-term health risks to ANY treatment is crucial to informed patient care and credibility.

  • See which cancers showed the most significant spike post-Covid 19 shot
  • Understand the implications of population-level health data from a top-ranked healthcare system

Tap play to get the facts and start rethinking what this means for your practice and your patients.

Link to study -  https://biomarkerres.biomedcentral.com/articles/10.1186/s40364-025-00831-w


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Coach JPMD (00:00.174)
Did you know about the study that was released in South Korea about the one year risk of developing cancer after COVID-19 vaccination? Welcome back to another episode where I help younger physicians decrease stress and increase income by transitioning from corporate to independent practices, even without any business experience. Well, this study was actually performed in 2025.

And it studied the one year risk of cancers associated with COVID-19 vaccination in a large population based cohort in South Korea. So before we say what I think many people may say, South Korea ranks number three in terms of life expectancy in the world. That's number three. That was detailed in my episode on longevity in episode 114.

So South Korea kind of knows what they're doing in terms of health. Now, when they come up with a study that says that there was an increase in risk of developing cancer after the COVID-19 vaccination or shot, I had to pause. And so that's why I am releasing this episode and the Do Not, Do Not, Did You Know episode series to help our colleagues.

in the population know that there is something that really needs to be investigated. This was data from 8.4 million people between the years 2021 and 2023. It was obtained from the Korean National Health Insurance Database. And it was retrospective study. And they had participants that were in two groups, one that received a COVID shot and one that did not.

And there was an increase in development of several cancers, one of which I think is the most prevalent one, which was gastric cancer. So that was one of the highest incidents of cancers in that vaccinated group, followed by thyroid cancer, colorectal cancer, lung cancer, breast and prostate cancer.

Coach JPMD (02:19.136)
So I don't know of any other study that was this large that looked at cancer risk post COVID shot. Hope we get some more to help clarify this.