While a tattoo never fully disappears, the placement of the tattoo on the foot determines how quickly the lines will fade or spread. Tattoos in places where the skin bends or flexes more than other areas tend to fade the fastest.
Tattoos on the bottom of the foot, the ankle and the toe fade faster than tattoos on the top or side of the foot. The closer the tattoo is to the bottom of the foot, the faster it fades or spreads. Tattoos fade at different rates depending on the style, color, size and thickness of the tattoo. However, many tattoo shops touch up tattoos to ensure that they look clean and fresh over the years.