A circle tattoo is a permanent picture that is drawn with ink just below the surface of the skin in the shape of a circle. In a circle, all points must be equidistant from the center.
There are many interpretable meanings for the circle shape, and many reasons why one may choose to get one a circle tattoo. Often, a circle represents wholeness, infinity, or the sun in accordance with the symbol's earliest and longest-lasting meanings. A circle tattoo can also mean feminine power in certain types of Earth-based religions. The cosmos, Mother Earth or a sacred space may also be implied. Some gnostic religions use the symbol to represent the World Serpent, a serpent that forms a circle as it eats its own tail.