Curing allergies can actually prevent cancer!?

The relationship between allergies and cancer has been debated in academic circles for a long time. Some scholars believe that a strong stimulation of the immune system may have a cancer-preventive effect, while others, from the perspective of chronic inflammation promoting proliferation, believe that allergies may actually increase the incidence of cancer. As for Dr. L, he has long believed that allergies are a major contributing factor to cancer development because the chronic inflammatory state represented by allergies can lead to faster tissue apoptosis and proliferation, and cause the immune system to overheat and become out of control, etc.

However, theory is one thing, but we still need real-world data to corroborate it. Therefore, the importance of the paper I'm sharing today is self-evident:

Published in a leading international academic journal in 2026. Nature Under its umbrella Scientific Reports ofpaperThe paper, "Association between allergies and cancer incidence: a systematic review and meta-analysis," provides more advanced evidence and explanations regarding the relationship between allergies and cancer.

Through a systematic review and meta-analysis, the research team compiled prospective cohort studies published globally between 1999 and 2024. Ultimately, from 886 studies, the researchers selected and included 28 prospective cohort studies, and synthesized the findings. Dr. L will list the key points below:

▌Allergies and Cancer

1. There is a statistically significant positive correlation between a history of allergies and the overall incidence of cancer, meaning that...Compared to the control group without allergies, patients with allergies had a significantly increased overall risk of developing cancer (OR 1.07, 95% CI: 1.03–1.11).This research finding also overturns the traditional assumption that "allergies have broad protective effects against cancer."

2. Among different types of allergies,Asthma showed a significant association with an increased risk of more cancers (OR 1.18, 95% CI: 1.10–1.28)..

▌Regional and Group Differences

In the subgroup analysis, scholars conducted integrated analyses of studies from the United States, Europe, and the Western Pacific, finding that...Western Pacific population (study groups include Taiwan, Australia, and South Korea) In other words, itsAllergic patients had a significantly stronger overall increased risk of developing cancer (OR 1.65, 95% CI: 1.22–2.21)..

This paper, to be published in 2026, provides a high level of empirical evidence for the epidemiology of allergy and cancer. The findings lean towards supporting...Organ-specific chronic inflammation may have a potential role in the development of certain cancers.Rather than the protective benefits of immune surveillance, this finding coincides with Dr. L's previous clinical ideas.

Therefore, Dr. L would like to remind everyone:

To more effectively prevent cancer, we should start with allergy treatment, which is already underway.!

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📚 References

1. Ishiguro, Y., Parvin, R., Hirabayashi, M., Inoue, M., & Abe, SK (2026). Association between allergies and cancer incidence: a systematic review and meta-analysis. Scientific Reports, 16, 30497. https://doi.org/10.1038/s41598-026-30497-x[cite: 17]

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