Which of the following defines a tattoo?

A tattoo is defined as an indelible mark made by inserting dyes into the skin. This definition highlights the permanence of tattoos, as they are created through the process of injecting ink into the dermal layer of the skin. Unlike temporary designs, decorative stickers, or color-changing adornments, tattoos are meant to last for a significant period, often for a lifetime. The use of needles to embed the ink makes the design a permanent alteration of the skin, distinguishing it from other forms of body art that are either temporary or superficial in nature. This understanding is essential for anyone involved in the body art industry, ensuring clarity on what constitutes a tattoo compared to other body modifications or adornments.