纹身由外源性物质植入真皮所致 ,包括业余纹身、专业纹身、还有创伤性或医源性纹身。传统的去除纹身的方法例如外科去除、磨削技术、液氮冷冻、电灼或化学药物剥除常常会导致疤痕。Goldman等在 2 0世纪 6 0年代首先使用普通模式和 Q开关的红宝石激光 ( 6 94nm)治疗纹身 [1] ,前 Tattoo implants by the exogenous material into the dermis, including amateur tattoos, professional tattoos, as well as traumatic or iatrogenic tattoos. Traditional tattoo removal methods such as surgical removal, grinding techniques, liquid nitrogen freezing, electrocautery, or chemical stripping often result in scarring. Goldman et al. First treated tattoo with ruby ​​laser (694nm) using normal mode and Q-switch in the 1960s [1]