February 28, 2026, 9:58 pm | Read time: 5 minutes

Follow the FITBOOK channel on WhatsApp now!

What Was Studied–and Why?

Tattoos are widespread today: In Western countries, about one in five people has at least one tattoo. At the same time, melanoma–also known as “black skin cancer”–is considered the most dangerous form of skin cancer. The number of cases is rising worldwide.

During tattooing, color pigments are permanently embedded in deeper layers of the skin. Potentially carcinogenic substances can enter the tissue directly. Additionally, the act of tattooing triggers immune reactions, the long-term effects of which are not yet fully understood.

Previous lab data and case reports have long suspected that certain tattoo inks might contain carcinogenic substances. Tattoos can also cause inflammation, which is often linked to an increased cancer risk. However, robust data from the general population is lacking. Therefore, researchers at the Huntsman Cancer Institute at the University of Utah sought to determine whether people with one or more tattoos are more likely to develop black skin cancer. The results were recently published in the Journal of the National Cancer Institute.¹

7,002 People With and Without Skin Cancer Studied

The study included a total of 7,002 people–including those without tattoos, with few tattoos, and with many tattoos. Of these, 1,167 had already been diagnosed with skin cancer. Among them, 566 had a so-called “in situ” melanoma, a very early form of black skin cancer. In this stage, the cancer cells are only in the top layer of skin and have not yet invaded surrounding tissue. The remaining 5,835 people without melanoma served as a control group.

All participants provided information on the following points:

• How many tattoo sessions they had
• The size of their tattoos
• The age at which they got their first tattoo

Also interesting: Does the “tattoo flu” really exist?

Study Design and Methodology

The study was conducted in Utah (USA). The researchers conducted a case-control study, comparing affected individuals with a healthy control group.

Based on the information from all participants, they calculated whether there were differences in skin cancer risk between tattooed and non-tattooed individuals–particularly concerning the number, size of tattoos, and age at first tattoo.

The evaluation was carried out using established statistical methods.

The More Tattoos, the Lower the Risk

The analysis showed: A single tattoo was not clearly associated with a higher risk. More pronounced effects were observed in people with greater tattoo exposure.

• People with at least four tattoo sessions had a significantly lower risk of developing melanoma. Their risk was about 56 percent lower than that of people without tattoos.

• For those with three or more large tattoos, the risk was even about 74 percent lower.

• The age at first tattoo also played a role: Those who got tattooed before the age of 20 had a lower risk of the more dangerous form of skin cancer (invasive melanoma) years later–about half as high as those who never got tattooed.

These results contradict the previous assumption that tattoos could increase the risk of skin cancer. In this study, the opposite was more likely.

Do Tattoos Serve as Skin Cancer Prevention? Probably Not!

“The findings that tattoos can reduce melanoma risk surprised us,” explains study leader Dr. Rachel McCarty in a university statement.² “But this is not a clear argument like: ‘Get more tattoos, and you’ll lower your risk.'” So far, the scientist can only speculate on the reason for the unexpected “cancer protection” of tattoos. She suspects that tattoo enthusiasts pay more attention to their skin: “Tattoo artists advise their clients to use sunscreen regularly to prevent tattoos from fading.” Additionally, tattoos might form a physical barrier that blocks ultraviolet radiation or triggers an immune response against precancerous cells.

Research Must Urgently Be Advanced

Given that tattoos are becoming increasingly popular and about a third of Americans under 30 enjoy them, more robust findings are needed. “Tattoos and tattooing are still under-researched,” says McCarty. “We must understand how they affect the risk of various cancers.” Whether the observations are due to more careful skin care or physical factors like an improved immune response makes a significant difference.

More on the topic

Study by Brown University One Food Can Significantly Increase the Risk of Skin Cancer

Skin Health Are Red Tattoos Really Harmful? Dermatologist Explains the Risks

Limitations of the Study

As intriguing as the results are, the study had its limitations.

• It is an observational study. It shows correlations but cannot prove a cause-and-effect relationship.
• Important risk factors such as skin type, previous sunburns, or family history could not be fully considered.
• The study was conducted exclusively in Utah–a region with specific demographic and cultural characteristics. Whether the results can be applied to other countries or populations is unclear.
• The study cannot explain the biological mechanisms behind the surprising “sun protection” effect of tattoos–or whether other factors played a role in tattooed individuals.

The study’s author herself points out that further research is needed to best confirm the unexpected results and better understand the background.

What the Dermatologist Says

FITBOOK asked Munich dermatologist Dr. Timm Golücke for his assessment. He also finds the study interesting but interprets the results with caution. “The observed correlation between multiple tattoos and a lower melanoma risk does not automatically mean that tattoos have a protective effect,” says the physician. He considers the already suspected and common sunscreen use among tattooed individuals a likely explanation. He also offers another point: “Tattoo ink and repeated skin injuries pose potential risks that have not been sufficiently researched.” Therefore, no preventive recommendation can be derived from the results. And so it remains: “For skin cancer prevention, consistent UV protection, self-examination of the skin, and regular check-ups by dermatologists remain the central components.”