Getting a tattoo can increase your risk of developing a type of cancer by 21 percent, a new study has found.
Researchers in Sweden found a possible link between tattoos and cancer in the lymphatic system, known as lymphoma.
Lymphoma is a type of blood cancer that affects the immune system.
The researchers, from Lynd University, wanted to investigate the link between tattoos and long-term health effects, as academic knowledge in this area is poor.
Dr. Christel Nielsen, who led the study, said: "It is important to remember that lymphoma is a rare disease and that our results apply at the cohort level. The results now need to be verified and further investigated in other studies, and such research is ongoing."
Researchers followed 11,905 people – 2,938 of the group, aged 20 to 60, had lymphoma.
The researchers also found that the size of the tattoo didn't matter — so having tattoos all over the body didn't increase the risk more than a smaller tattoo, Metro writes.