Tattoos can cause a spectrum of reactions, from swelling at the injection site to an effect that can spread over the body.

An international team of anthropologists, cultural heritage specialists and lab analysts has found tattoos of a type never seen before on the face and arm of an 800-year-old Andean mummy. Their paper ...

Archaeologists studying a 1,300-year-old corpse unearthed in Sudan recently made a surprising discovery: a tattoo of a Christogram. The symbol combines the Greek letters chi and rho in an abbreviation ...