An international research team consisting of scientists from Denmark and Finland has studied the potential health risks of tattoos, finding that they may increase the likelihood of developing skin cancer and lymphoma. The results of this study were published in the BMC Public Health journal.
The effect of tattoos on the immune system
The ink used for tattoos is partially absorbed by lymph nodes when it enters the skin. Lymph nodes are an important part of the immune system, serving as a defense against harmful substances. However, tattoo pigments may be recognized by the body as foreign substances, potentially leading to chronic inflammation and continuous activation of the immune system.
Professor Henrik Frederiksen, a hematologist at the University of Southern Denmark, commented on the research findings:
“We are observing the accumulation of ink in the lymph nodes. We suspect this may weaken their function or have other negative effects on health.”
The study and its results
The researchers analyzed data from over 5,900 Danish twins using the Danish Twin Tattoo Cohort. In this analysis, cases were compared where one twin had a tattoo and the other did not. This method allowed for the consideration of genetic and environmental factors.
The results showed:
People with tattoos have a higher risk of skin cancer and lymphoma.
Large tattoos (larger than palm size) pose an even greater risk.
The likelihood of developing lymphoma is three times higher compared to those without tattoos.
Types of ink and levels of risk
One of the most significant findings of the study is that some pigments may be more hazardous than others. For example:
Red ink is associated with a higher incidence of allergic reactions.
Although not yet confirmed, some chemicals may have carcinogenic effects.
This study highlights the need to reconsider the approach to tattoos. While a direct causal link has not yet been established, existing evidence demands that the potential impact of tattoos on human health not be dismissed. It is important for individuals to be fully informed about the potential risks before getting large tattoos.
The study results still require further investigation, but the evidence regarding the impact on the immune system and cancer risk is a serious concern for the fields of medicine and cosmetics.
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