There are two types of tattoos: permanent and temporary. Temporary tattoos disappear after some time. Others may stay on the skin for several months or even years if they are done properly. However, they will eventually come off regardless of how hard you wash your skin. Permanent tattoos will always remain on your body. They can only be removed by burning them off. Even then, this won't always remove everything; only the visible part of the tattoo will come off. Underneath there will still be a mark left by the ink.