色素斑，是皮肤黑色素颗粒分布不均匀，导致局部出现比正常肤色深的斑点、斑片。日晒过度、内分泌失调、慢性肝肠胃疾病、化妆品使用不当等，都可能是引起色素斑的诱因。可以使用非手术法和手术方法等来治疗。
vt. stain
misc. pigmented spots
硬不疳不诊治，一个月后可自然消退，遗留一个浅的疤痕或色素斑。
Hard not Gan don't make a diagnosis and give treatment, after a month can be natural subsidise, left a shallow scar or pigment spot.
结果痤疮患者采用胶原蛋白贴敷料配合治疗，红斑消退时间缩短，色素斑消退时间加快。
Results The extinctive time of erythema in acne patients was shortened and the extinction of pigment expedited after treated in combination with dressing collagen.
内异症和（或）腺肌症组各年龄段患者面部色素斑阳性率均显著高于对照组（P<0.05）；
There was no significant difference in age, BMI and serum basic E2 level between two groups (P>0.05).
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