纹身是利用色素纹刺皮肤而形成的永久性人工色素斑，起到装饰和美化皮肤的作用。目前去除纹身的方法有手术切除、冷冻、激光等选择。一般手术治疗和冷冻治疗的效果均不太理想，而且会给求美者皮肤造成斑痕等后遗症。所以用激光洗纹身是当前最理想的方法。激光可瞬间高能击碎、瀑破色素颗粒，被击碎的色素碎屑可通过脱痂或通过细胞吞噬及淋巴血液循环排出体外。
Tattoo is a permanent artificial pigmented spot formed by pricking skin with pigmented stripes, which plays a role in decorating and beautifying skin. At present, the methods of tattoo removal include surgical resection, cryosurgery, laser and so on. General surgical treatment and cryotherapy are not ideal, and will give the beauty of the skin caused by scars and other sequelae. So using laser to wash tattoo is the best way at present. The laser can crush and break the pigment particles instantly and energetically. The broken pigment debris can be discharged out of the body through escharectomy or cell phagocytosis and lymphatic blood circulation.
洗纹身的传统方法：用药物进行化学性剥脱，物理性的磨削，电灼、冷冻，切除一部分纹身部位的皮肤，甚至重新纹上另一种颜色掩盖原来的纹身等。但由于这些方法往往都不能完全去除纹身的色素，而且极可能留下难看的疤痕。
Traditional methods of tattoo washing: chemical peeling with drugs, physical grinding, electric cauterization, freezing, removing part of the tattoo skin, even re tattooing another color to cover up the original tattoo, etc. But because these methods often can not completely remove the pigment of tattoo, and it is likely to leave ugly scars.