Why tattoos could give you cancer
- Lymph nodes may become swollen and therefore less able to fight off infections
- Titanium dioxide is added to ink to create colours but also dyes lymph nodes
- The controversial chemical is linked to cancer, itching and delayed healing
- Chemicals and heavy metals may travel in the blood or be engulfed by cells
- Researchers recommend people investigate chemicals in ink beforehand
Alexandra Thompson Health Reporter For Mailonline
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Tattoos could give you cancer, new research suggests.
Chemicals in tattoo ink travel in the bloodstream and accumulate in the lymph nodes, which may cause them to become swollen and therefore hinder their ability to fight infections, a study found for the first time.
Controversial chemical titanium dioxide, which is added to tattoo ink to create certain colours, even dyes lymph nodes, and has previously been linked to cancer, itching and delayed healing.
Study author Hiram Castillo from the European Synchrotron Radiation Facility in France, said: ‘When someone wants to get a tattoo, they are often very careful in choosing a parlour where they use sterile needles that havent been used previously.
‘No one checks the chemical composition of the colours, but our study shows that maybe they should.’
Toxins in tattoos may stay in your body for life, new research suggests (stock image)
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DO YOU HAVE A TATTOO? YOU MAY BE AT RISK OF HEAT STROKE: INKED SKIN SWEATS SIGNIFICANTLY LESS
Having a tattoo alters the way people sweat, research revealed in April.
Tattooed skin produces less sweat, while the perspiration it does secrete is higher in sodium, a study by Alma College in Michigan found.
Tattooing involves permanently placing ink around 3-5mm under the skin, which is the same depth as sweat glands.
Whether a person’s long-term health is affected by reduced sweating is unclear, however, perspiration is critical to regulating body temperature, with overheating eventually causing heatstroke.
‘Pigments from tattoos travel to the lymph nodes’
The researchers used powerful X-rays to identify titanium dioxide and heavy metals present in tattooed skin and lymph node tissue samples.
Although particles of varying sizes are found in the skin, only highly microscopic titanium dioxide fragments are present in the nodes, which may cause them to become swollen.
The researchers believe the particles may be transported in the blood or engulfed by immune cells that subsequently deposit them.
This deposition may cause lymph nodes to swell, impairing their ability to fight infections and filter out pathogens.
Study author Bernhard Hesse said: ‘We already knew that pigments from tattoos would travel to the lymph nodes because of visual evidence: the lymph nodes become tinted with the colour of the tattoo. It is the response of the body to clean the site of entrance of the tattoo.
‘What we didn’t know is that they do it in a nano form, which implies that they may not have the same behaviour as the particles at a micro level. And that is the problem: we don’t know how nanoparticles react.
Mr Castillo added: ‘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.’
The findings were published in the journal Scientific Reports.
What is titanium dioxide?
Titanium dioxide is the second most commonly used ingredient in tattoo ink.
Its whitening and thickening properties means it is also added to washing detergents, fragrances, air fresheners and paint, as well as being used in cooling liquids in fridges and as a lubricant in motor oil.
On June 9 2017, the European Chemicals Agency announced titanium dioxide is a substance suspected of causing cancer when inhaled.
Previous research has linked titanium dioxide to itching and delayed healing.
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