"When someone wants to get a tattoo, they are often very careful in choosing a parlour where they use sterile needles that haven´t been used previously. No one checks the chemical composition of the colours, but our study shows that maybe they should," co-author Hiram Castillo said in a statement.
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Scientists did note they were not exactly sure the particles identified derived from the tattoos. However, they are confident about their findings. Plus, this is one of the first analyses of its kind. “The origin and fate of pigments in human lymph nodes have never been analytically investigated so far,” the study said.
For future examinations, researchers would like to delve deeper into their investigations to better track tattoo particles in other parts of the body.
“The outcome of these investigations,” the study said, “not only will be helpful in the assessment of the health risks associated with tattooing but also in the judgment of other exposures.”