This question has changed in the last two years. Until 2024 the honest answer would have been that no good studies had been done. Then a Swedish team published the first large population study to look at this directly. The answer became more complicated. This page walks through what that study actually found, what the follow-up research has added and what it does and does not mean for someone thinking about getting a tattoo.

We are tattoo artists, not oncologists. Nothing here replaces a conversation with your GP if you have specific concerns. What we can do is explain the research clearly so you can think about the risk in the same terms a doctor would.

What the 2024 Lund Study Actually Found

Christel Nielsen and colleagues at Lund University used the Swedish national cancer register to compare 1398 people with lymphoma against 4193 healthy controls. Tattoo rates in each group were 21% versus 18%. After adjusting for confounders, they found an increased risk of lymphoma in tattooed individuals.

Our findings suggested that tattoo exposure was associated with an increased risk of malignant lymphoma. More epidemiologic research is urgently needed to establish causality.
Adapted from Nielsen et al, eClinicalMedicine 2024

The two specific subtypes that showed the strongest association were diffuse large B-cell lymphoma and follicular lymphoma. Interestingly the size of the tattoo had little effect on risk. The highest hazard ratio was for people whose first tattoo had been done in the previous two years, which surprised researchers and remains unexplained.

What the 2026 Danish Twin Study Added

A separate Danish team used a registry of nearly 6000 twins to compare cancer rates among tattooed people versus non-tattooed people, both at the individual level and within twin pairs. The twin pair comparison is methodologically powerful because it controls for genetics and shared upbringing.

They found a 62% higher skin cancer risk in tattooed individuals at the individual level. Larger tattoos were associated with up to 2.7 times the lymphoma risk and more than double the skin tumour risk. The twin pair analysis was smaller and the results there were less statistically clean. The overall direction matched the Lund findings.

What Is Actually in Tattoo Ink

The biological mechanism that could plausibly link tattoos to cancer is the chemistry of the ink itself. Tattoo inks are not regulated as strictly as cosmetics or pharmaceuticals. Independent testing has found that many contain compounds classified as carcinogenic.

Importantly the UK and EU now restrict the worst offenders under REACH regulations updated in 2022. Many of the substances tested in older inks are no longer permitted in inks sold legally in the UK. A reputable studio in Manchester should be using REACH compliant ink and will be happy to tell you which brand they use.

How the Ink Moves Around the Body

This is where the biological argument for a cancer link becomes plausible. Tattoo ink does not stay in the skin permanently. Research using post-mortem samples shows that 60 to 90 percent of pigment migrates out of the original tattoo site over time. The destination is mostly the lymph nodes nearest the tattoo, with some pigment reaching the liver, spleen and lungs through the bloodstream.

The presence of carcinogens in lymph nodes is one reason researchers are looking at lymphoma specifically. Lymphoma starts in lymphocytes. Lymphocytes congregate in lymph nodes. Carcinogens that accumulate in lymph nodes have a long time to interact with the cells that can become cancerous.

The Absolute Risk in Real Numbers

A 21% increase sounds alarming. It needs context. Lymphoma is a rare cancer. Lifetime risk for the general UK population is around 1 in 50. A 21% relative increase moves that to roughly 1 in 42. The absolute change is small even if the relative change is statistically significant.

This is the same distinction that comes up with red wine, cured meats and any other lifestyle factor linked to cancer. The honest framing is that tattoos may be one of many small contributors to overall lifetime cancer risk. They are unlikely to be among the most significant.

How to Lower Your Personal Risk

If you want to reduce whatever risk does exist, four things matter more than the rest.

Use a REACH Compliant Studio

UK and EU regulations since 2022 have banned many of the worst chemicals from tattoo inks sold legally. A studio that buys properly regulated stock from European suppliers is using ink that is already much cleaner than older formulations.

Avoid the Very Worst Pigments

Red and yellow inks have historically carried the most concerning chemistry. Modern REACH compliant reds are much safer than the cinnabar-based reds of decades past. If you are highly risk averse, ask your artist about pigment options or stick to black work.

Protect Tattoos from UV Exposure

UV degrades ink. Degradation products can be more toxic than the original pigment. Daily SPF on visible tattoos protects both the artwork and your skin.

Watch for Skin Changes

Tattoos can hide moles. If you have a mole that was visible before the tattoo, keep an eye on it. Any new lump, lesion or persistent change in the tattooed area should be checked by your GP. This applies to anyone with tattoos regardless of recent research.

Thinking It Through Before You Book

If the cancer question matters to you, talk to your GP about your specific risk factors. Family history of lymphoma, immune conditions and existing skin conditions all change how the research applies to you. For most healthy people, the absolute risk numbers do not justify avoiding tattoos entirely. They do justify using a high quality, regulated studio. Our tattoo Manchester page covers the brands and protocols we use.

Practical Questions That Come up

Does Laser Removal Increase Cancer Risk?

This is an open question. Laser breaks ink particles into smaller fragments. Some of those fragments are more toxic than the original pigment. The body has to clear them through the lymphatic system. Researchers have raised this as a concern but no large study has yet established whether removal increases overall cancer risk above leaving a tattoo in place.

Are Coloured Tattoos Riskier Than Black Ones?

Possibly. Red, yellow and certain blue pigments historically contained the most reactive chemicals. The 2024 Lund study did not find that colour explained the risk pattern. Earlier research has flagged coloured inks as more problematic for allergic reactions and pigment degradation. If you are risk averse, black work is a cleaner choice.

Should I Avoid Getting a Tattoo While Pregnant or Breastfeeding?

Yes. This is not directly a cancer issue but is worth mentioning. Most reputable UK studios will refuse to tattoo pregnant or breastfeeding clients because of infection risk and the unknown effect of ink chemicals on a developing baby. Wait until you are no longer pregnant or feeding.

What If I Already Have Tattoos and Worry About This?

The research is observational. Even if a causal link is eventually proven, the absolute increase in risk is small. There is no current evidence that removing existing tattoos lowers cancer risk. The most useful thing you can do is have any concerning skin change checked by a GP and protect your tattoos from UV exposure.

For the full picture before you book, the rest of our tattoo preperation guide covers every common health question, from infection signs to allergic reactions to long-term ink behaviour. Cancer is one chapter among many.

The honest summary is that the science is still being written. Two large studies have raised legitimate questions about a possible link between tattoos and certain cancers. Neither study has established that tattoos cause cancer. For most healthy people the absolute risk increase is modest. Choosing a regulated studio matters far more than worrying about the worst-case interpretation of early research.