There are some cultures that encourage tattoos. These tattoos may have tribal significance. Other cultures may accept tattoos as simply pretty. And some cultures frown upon tattoos that are openly visible for all to see.
What is interesting is that God says He had a “tattoo.” In Isaiah 49:14, the people of Israel say that God has forgotten them. But God says He has not forgotten them. In verse 16 we read, “Behold, I have graven thee upon the palms of my hands; thy walls are continually before me.” God does not have physical hands. He uses this symbolism to make the point that He does not forget His people.