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Tattoos and Health: Could Tattoo Ink Be Linked to Cancer?

Published January 5, 2026, 09:18
Tattoos and Health: Could Tattoo Ink Be Linked to Cancer?

A new scientific study from Denmark, published in BMC Public Health, examines the relationship between exposure to tattoo ink and the development of cancer, such as lymphoma and skin cancers. The study was based on data from twins, allowing researchers to isolate the effect of tattoos from other factors. The research found that tattoo ink does not remain solely at the injection site, but can be transported through the lymphatic system and bloodstream to organs such as the liver. This transfer can cause chronic inflammation, which is linked to an increased risk of cancer. Particular concern is raised by the use of carbon black in black ink, a substance that has been classified as possibly carcinogenic. In addition, pigments in colored inks can break down with exposure to sunlight or during laser removal, releasing harmful chemical compounds. The study results showed that people with tattoos had an increased risk of skin cancer, while large tattoos (larger than the palm of the hand) were associated with an even higher risk of both skin cancer and lymphoma. Researchers suggest the need for further research on the long-term safety of tattoos and the inks used.