[摘要]目的：探讨新型YAG激光去除皮肤细胞色素的机理。方法：用8种不同能量密度的YAG激光，作用于新西兰大白兔的纹身皮肤区，观察其结果。结果：YAG激光治疗色素病变可以消失，色素细胞呈现空泡状，但色素细胞轮廓的框架仍可完整保留，色素细胞周围组织并未受损伤仍可存活，并可见巨噬细胞增多，该细胞内出现色素颗粒。结论：YAG激光只破坏色素颗粒或色素细胞，而邻近的正常细胞不被破坏，是目前治疗皮肤色素性疾病较有效的、副作用较小的方法。

    [关键词]激光；色素；黑色纹身；机理

    [中图分类号]R616.4 [文献标识码]A [文章编号]1008-6455(2009)01-0078-03

    Analyze the role of 755nmYAG laser to remove black tattooing pigment

    SHEN Lei,LI Jing-ping,GAO Heng-yu

    (Department of Anatomy,Qiqihaer Medical College,Qiqihaer 161006,Heilongjiang,China)

    Abstract:ObjectiveTo analyse the role of neotype YAG laser to removal skin cytochrome.MethodsWe applied eight kinds of YAG laser to the tattoo skin region of New Zealand adult rabbit,then observed the results.ResultsYAG laser could healing the pigment pathological changes, chromatophore present vacuolus.But the Vallate frame remaining Integrity.The surrounding tissue of chromatophore have not injury and still survival. Macrophage was heightened, pigment granule appear in the cell. ConclusionYAG laser just only destroy pigment granule or chromatophore, adjacent normal cell is noteffected..It is effectual and low side effect method to cure skin pigment disease in the present time. ......