概述
概述
肩部和背部的老年斑
肩部和背部的老年斑
如果您肤色较浅,又经常暴露在阳光下,皮肤上就更容易出现老年斑,也就是色素沉着加重的区域。
老年斑是皮肤表面小而平坦的深色斑块。老年斑大小不一,通常出现在接触阳光的部位,如面部、手部、肩部和臂部。老年斑又称晒斑、黄褐斑和日光性雀斑样痣。
老年斑在 50 岁以上成人中很常见,但是年轻群体也可能因为日晒时间过长而出现老年斑。
老年斑可能看起来像癌性生长物。真正的老年斑无需治疗,但是它们是皮肤受到过度日晒的体征,是皮肤试图自我保护免受更多日光损害。从美容的角度考虑,可以将其颜色变浅或切除。
您可以经常涂抹防晒霜并避免日晒,帮助预防老年斑。
症状
症状
手上的老年斑
手上的老年斑
老年斑可能会扩大并连成片,使皮肤上出现斑点或斑块。老年斑最常见于反复日晒的部位(例如手背)。
老年斑可能影响所有皮肤类型的人,但在浅色皮肤的成年人中更常见。与在儿童中很常见雀斑不同,其在没有日晒下就会褪色,而老年斑不会褪色。
老年斑:
- 为色素沉着的扁平、椭圆形区域
- 通常是棕褐色至深褐色
- 出现在整年里晒太阳最多的皮肤上,比如手背、脚背、脸、肩膀和上背部
- 从斑点大小到约 13 毫米(半英寸)宽
- 可能成群出现,使其更容易注意到
症状
老年斑不需要医疗护理。让您的医生检查那些黑色的或外观有变化的斑点。这些变化可能是黑色素瘤(一种严重的皮肤癌)的体征。
最好让医生对任何新出现的皮肤变化进行评估,特别是如果斑点出现以下情况:
病因
病因
老年斑由过于活跃的色素细胞引起。紫外线(UV)灯会加速产生黑色素,一种形成皮肤颜色的天然色素。常年日晒的皮肤在黑色素聚集或产生黑色素浓度高时会出现老年斑。
使用商业日晒灯和日晒床可能也会形成老年斑。
风险因素
风险因素
如果您满足以下条件,那么您更有可能出现老年斑:
预防
预防
为了避免老年斑和治疗后出现新斑,请遵循以下建议,减少晒太阳:
Feb. 11, 2022
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