Old tattoos can be freshened up or covered and a tattoo is a great way to conceal a scar.
When the skin is damaged, the body does its best to repair itself. The he body cannot re-create healthy skin or tissue, but it puts together new fibers that are not as functional as the original tissue, this becomes a scar. Most scars do not hold tattoo color well but they can be hidden away by incorporating them into a design so they are hardly noticeable.