Myth check · 4 min read
Myth: Tattoo ink enters the veins
The phrase that tattoo ink is injected into, or settles in, the veins is common – but it does not describe normal tattooing.
Where the idea comes from
Tattooing involves needles, occasional bleeding and pigment entering the body. It is therefore easy to imagine an injection into a blood vessel. A tattoo machine, however, does not work like a syringe placed in a vein.
What actually happens
The needle group moves rapidly through the epidermis and deposits small amounts of pigment in the dermis. Tiny capillaries can be injured, which explains small spots of blood or clear wound fluid. That is different from deliberately injecting ink into a vein.
Pigment and the body
Much of the pigment remains locally in the dermis. Research has also found pigment particles in regional lymph nodes, showing that the immune and lymphatic systems can transport some material. This is not the same as ink settling in the veins.