手上的纹身

Quick answer：

Hand tattoos are permanent designs or patterns that are applied to the skin with ink. They can range from simple designs to complex artwork and can be found on various parts of the body, including hands. Hand tattoos are popular for their visibility and personal expression. The process involves injecting ink into the skin, which then heals to form a permanent mark. Hand tattoos have cultural and personal significance, and their meanings can vary widely depending on the design and cultural context.