Fading ink: Japan's 'hand-carved' tattoo masters fight to keep their art alive
https://edition.cnn.com/style/article/japan-tattoo-artist-tebori/index.html
As well as the fact that tatoo is avoided in many situations in Japan, it may do harm on liver cells. So, in my opinion, we should not get our bodies tatooed, if it's possible.
Even if tatoo becomes popular than before, it's still bad health.