色素减退是一种皮肤疾病，主要是黑色素减少，常见症状有白癜风、白化病和皮肤炎症后的色素减退。
misc. hypopigmentation
炎症后白斑或色素减退 postinflammatory leukoderma or hypomelanosis
舌色素减退 tongue discolouration
特发性滴状色素减退症 idipathic guttate hypomelanosis
大便色素减退 feces discolouration
色素减退型 hypopigmented
进行性斑样色素减退症 progressiVe macular hypomelanosis
The relationship between course and pigment alterationAmong the patients we investigated, the shortest course was 3 days and the longest was 20 years. The mean course of the patients with hypopigmentation or hyperpigmentation are 17.33 +6.91months and 14.23 +5.73months.
3.本次调查患者中最短病程为3天，最长为20年，色素沉着和色素减退的平均病程分别为17.33士6.91月和14.23士5.73月。
参考来源 - 花斑癣皮损处马拉色菌的分离鉴定与皮肤色素改变的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
对白癜风的早期诊断及与其他色素减退斑相鉴别提供了参考依据。
In a nutshell, the application of PD has offered references to the early diagnosis of vitiligo and its differential diagnosis from other depigmentation diseases.
这个“综合症”包含长时间暴露在电脑热量下引起的皮肤色素减退。
The "syndrome" consists of a brownish discoloration of the skin caused by prolonged exposure to heat from the computer.
方法：应用中波紫外线治疗白癜风、妊娠纹、色素减退性瘢痕等色素减退性皮肤病共40例。
Methods 40 cases of leukoderma including vitiligo, pregnancy stretch marks and hypopigmentative scars were treated with UVB.
应用推荐