Objective To detect red fluorescence in the facial skin of healthy individuals and patients with seborrheic dermatitis ( SD). Method Skin analysis was performed to obtain the ultraviolet images of the facial skins of 61 healthy individuals and 64 SD patients, and the detection rate of red fluorescence was calculated. Results The detection rate of the red fluorescence was 36. 06% in healthy individuals and 70. 31% in SD patients (χ2 = 14. 728 , P < 0. 005 ) . Additionally, it was significantly higher in T zone, where sebum secretion is high, than in U zone, where sebum secretion is lower (χ2 =11. 529, P < 0. 05 ; χ2= 23.757, P <0. 05, respectively). Conclusions Red fluorescence exist in both healthy individuals and SD patients, and the detection rate is especially high in the latter. Meanwhile, red fluorescence may be related with sebum secretion.%目的 调查健康人群和脂溢性皮炎患者的面部红色荧光物质的检出情况,为临床诊治及疾病发病机制的研究提供依据.方法 用皮肤分析仪拍摄健康人和脂溢性皮炎患者面部的紫外光图像,计算红色荧光物质在健康人和脂溢性皮炎患者中的检出率.结果61名健康人和64例脂溢性皮炎患者面部红色荧光物质的检出率分别为36.06%和70.31%,两组比较差异具有统计学意义(χ2=14.728,P＜0.005).两组红色荧光物质在皮脂分泌量高的T区检出率分别较皮脂分泌量低的U区高,差异具有统计学意义(χ2=11.529,P＜0.05;χ2=23.757,P＜0.05).结论红色荧光物质不仅出现于痤疮患者面部,在健康人及脂溢性皮炎患者的面部均可检出;脂溢性皮炎患者红色荧光物质检出率高于健康人;红色荧光物质可能与皮脂的分泌有关.
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