Cyprus Times

Research Investigates Link Between Tattoos and Cancer

Published January 5, 2026, 20:06
Research Investigates Link Between Tattoos and Cancer

A new Danish study is investigating the connection between tattoos and cancer, a topic that remains relatively unexplored despite the popularity of tattoos. The study, published in BMC Public Health, used data from the Danish Twin Registry to assess the impact of tattoo ink on the development of cancers such as lymphoma and skin cancer. Twins were selected due to their shared genetic background, allowing researchers to better isolate the effect of tattoos. The research found that tattoo ink particles do not remain solely at the injection site but can be transported through the lymphatic system and bloodstream, accumulating in lymph nodes and organs such as the liver. This transport can cause chronic inflammation, which is known to increase the risk of cancer. Particular emphasis is placed on the fact that black ink, the most common, often contains carbon black, a substance considered potentially carcinogenic. The production of carbon black also generates polycyclic aromatic hydrocarbons, some of which are proven carcinogens. Furthermore, other pigments in colored inks can break down and release harmful chemicals when exposed to sunlight or during laser removal. The study results showed that individuals with tattoos had an increased risk of skin cancer compared to those without tattoos. The risk was even higher for individuals with large tattoos – those covering an area larger than the palm of the hand – and a correlation was observed with an increased risk of lymphoma.