covid vaccines cause breast cancer

Question

the covid 19 vaccine may cause breast cancer

Comments

My Claim after Fact Checking: After reading both of these articles by cancer.org and breastcancer.org it is explained that having breast cancer can weaken the covid 19 vaccine but in no way does the covid vaccine lead to breast cancer. The claim is that Covid vaccines cause breast cancer and there is just simply no evidence to that and it has actually been disproven.
https://www.breastcancer.org/managing-life/staying-well-during-covid-19/vaccine-facts

https://www.cancer.org/cancer/managing-cancer/coronavirus-covid-19-and-cancer/covid-19-vaccines-in-people-with-cancer.html

Answer 1

This claim is false. In the beginning of the article linked to the claim, it is pointed out that there is "no link between the COVID-19 vaccines and breast cancer risk". Instead, this article focused on the potential side effects of the vaccine, and precautions to some people with pre-existing health issues, like cancer, to talk to a doctor about what is best for them. This article also states that the American Cancer Society and the U.S. National Cancer Institute report "there is no information that COVID-19 causes cancer". This claim is proven to be wrong by several reliable sources. 

Source: https://www.cancer.org/cancer/managing-cancer/coronavirus-covid-19-and-cancer/covid-19-vaccines-in-people-with-cancer.html

Answer 2

This claim of "the covid 19 vaccine may cause breast cancer" is false. 

After reading the article that this claim is linked by the covid 19 vaccine cannot cause breast cancer. BreastCancer.org states it is actually the opposite "If you've been diagnosed with breast cancer, experts recommend that you receive an updated shot"(Depolo). This article is also in present day Jamie Deploy, a researcher for Breast Cancer says "people with a history of breast cancer are still advised to get a 2025-26 vaccine" (Depolo).To even further the point the same article that is linked to the claim states "There's no link between the Covid-19 vaccines and breast cancer risk or developing breast cancer" (Depolo). This evidence directly goes against the claim of the covid 19 vaccine may cause breast cancer. 

To further my claim I found another article from Science claim and the article was about how the Covid 19 vaccine does not cause breast Cancer, but it may cause temporary lymph node swelling, which is harmless and a normal immune system. Ultimately, the covid 19 vaccine has zero correlation with getting Breast Cancer.

Sources 

https://www.breastcancer.org/managing-life/staying-well-during-covid-19/vaccine-facts

https://www.sciencedirect.com/science/article/pii/S0093775421000695?via%3Dihub

Answer 3

This claim is false. There’s no real evidence that the COVID-19 vaccine causes breast cancer. Health experts, including those from the American Cancer Society and the National Cancer Institute, have confirmed that vaccines don’t increase cancer risk. Some people might notice swollen lymph nodes under their arm after getting the shot, and that can show up on a mammogram, but it’s a normal immune reaction — not a sign of cancer. The swelling usually goes away after a few weeks. Overall, the COVID-19 vaccine is safe, and there’s no connection between it and breast cancer.

Sources:

https://www.breastcancer.org/managing-life/staying-well-during-covid-19/vaccine-facts

https://news.cuanschutz.edu/cancer-center/vaccines-lumps-that-mimic-breast-cancer

Answer 4

This claim is false. While it is true that scientists and doctors are still discovering side effects of this relatively new vaccine, it is untrue that it causes any type of cancer including breast cancer. In numerous studies, there is no evidence that supports this claim. BreastCancer.org states that “Both the U.S. National Cancer Institute and the American Cancer Society report there’s no information that COVID-19 vaccines cause cancer.” So with no evidentiary support, this claim is easily debunked and proven as false. 

Sources: 

https://www.breastcancer.org/managing-life/staying-well-during-covid-19/vaccine-facts

Answer 5

This claim is false. There is no credible evidence that COVID-19 vaccines lead to breast cancer. What has been observed is that the vaccine can cause temporarily swollen axillary lymph nodes which may appear suspicious on breast imaging but this is an immune response not cancer. One primary source I used was a study titled “COVID-19 vaccine-related axillary lymphadenopathy in breast cancer patients”. The researchers examined six breast cancer patients who experienced lymph node swelling after receiving the COVID-19 vaccine. The study found that none of these cases were malignant, and the swelling resolved without treatment. Another primary source I reviewed was the UCLA Health statement on how the vaccine can temporarily affect mammogram results. They clarified that this swelling is benign and not a sign of breast cancer. The radiology study from South Korea had a small sample size, which limits how broadly the results can be applied. While some people experienced lymph node swelling after vaccination, studies confirm this is a normal immune reaction, not an indicator of cancer or tumor growth. 

https://pmc.ncbi.nlm.nih.gov/articles/PMC8547943/?utm_source=chatgpt.com

https://www.uclahealth.org/news/publication/covid-19-vaccine-can-affect-mammogram-result-most-cases-it?utm_source=chatgpt.com

Answer 6

This is False!

No credible source uses tangible data, studies, and scientific reasoning to come to this conclusion. The source cited in the original post doesn't even assist this point; it goes over difficulties someone who has a history of breast cancer may face when taking the vaccine. This may include multiple doses, more accommodations with your doctor and others, depending on your history. However, none of those include a chance of getting breast cancer. In fact, the website cited actually mentions that "There’s no link between the COVID-19 vaccines and breast cancer risk or developing breast cancer".

The National Library of Medicine wrote a paper on the effects of the COVID-19 vaccine on people who already have breast cancer. It concludes that it may have some effects, but the patient should consult their doctor. However, it does not indicate in any way that the vaccine causes breast cancer.

There was an article expressing that the COVID-19 vaccine and its variants cause different types of cancer. However, its evidence is not credible, and it's not from a credible source.

https://www.breastcancer.org/managing-life/staying-well-during-covid-19/vaccine-facts

https://pmc.ncbi.nlm.nih.gov/articles/PMC8547943/

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

Answer 7

No, covid vaccines do not cause breast cancer. I fact checked this by looking at an article from Breast Cancer.org that showed that there is no link between getting the covid vaccine and getting breast cancer. Although some cancer patients were warned about getting the covid vaccine due to immunocompromisation from cancer treatment, there is no link between receiving the covid vaccine and being diagnosed with breast cancer.

Sources:

https://www.uclahealth.org/news/publication/covid-19-vaccine-can-affect-mammogram-result-most-cases-it 

https://www.breastcancer.org/managing-life/staying-well-during-covid-19/vaccine-facts