Tattoos and More Health Problems

Tattoos are increasingly becoming commonplace, and a growing number of people spend thousands of dollars to obtain tattoo “sleeves”—covering an entire arm or leg with tattoos. Aside from an apparently small risk of infection from the needle and maybe a mild allergic reaction to the ink, tattoos are thought to be relatively harmless. But are they?

A new study examining the impact of tattoo ink on immune function was recently published by the Institute for Research in Biomedicine at the Università della Svizzera Italiana in Switzerland (EuroNews, December 5, 2025). The study’s researchers warned, “This work represents the most extensive study to date regarding the effect of tattoo ink on the immune response and raises serious health concerns associated with the tattooing practice.” They found that tattoo ink not only remains in the skin but also travels through the bloodstream and accumulates in the immune system—where it can remain for years! The ink begins to cause cellular death and inflammation and may also weaken the immune system. Researchers are also studying long-term effects of tattoos on the risk for developing lymphomas and other types of cancer. As tattoos become more ubiquitous, research on their risks will likely increase, and in the years to come we can expect to learn far more about the negative health impacts of this popular practice.

In light of the emerging negative health effects of tattoos, it is not surprising that the God of the Bible forbids them (Leviticus 19:28). While there are spiritual reasons why God told His people not to get tattoos, there are physical health reasons behind many of His commands, as well. It is in His love that He directs His people to avoid such practices. You can learn more by reading or listening to “Marks of Regret.”