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疤痕

疤痕(scar,scar tissue)又称瘢痕,是皮肤损伤后取代正常皮肤的纤维组织(纤维化),它是生物身体皮肤和其他组织的创面修复过程中的结果,属自然愈合过程的一部分。伤痕的含义较广,除了同义于疤痕,也包括任何生物体与非生物体受损害尚未修复或已修复的痕迹,或是人精神上的痛苦。

疤痕除了非常轻微的病变,每一个伤口(如意外事故疾病手术后)都会导致一定程度上的疤痕。一个例外是动物的再生,不形成疤痕,且组织会重新长成和以前一样。

瘢痕组织都是由一样的蛋白质胶原蛋白)取代的,但纤维的组合方式是不同的。在纤维化的组织中,胶原纤维形成在单一方向上的对齐排列,而不是正常组织中随机形成的网篮状。因此瘢痕组织中的胶原纤维,功能质量通常较为低劣。例如,在皮肤上的疤痕较不耐受紫外线照射,并且没有汗腺毛囊

特征

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疤痕肌肤呈现不平整的瘤状增生,使得皮肤看起来凹凸不平。同时也会发现扩张的毛细血管,质硬。

治疗方法

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疤痕分类

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凹陷性疤痕、凸起性疤痕、平复性疤痕、自发性瘢痕疙瘩、继发性瘢痕疙瘩

疤痕颜色

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皮肤损伤后,伤口会从粉红色逐渐转为褐色,之后会转为淡褐色,最终会形成白色疤痕。若伤口在皮肤上呈现白色疤痕,则属疤痕稳定后的最终颜色。

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疤痕
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