为研究三种类型瘢痕的超微结构差异，作者应用扫描电镜对６例增生性瘢痕，３例瘢痕疙瘩及４例萎缩性瘢痕的表面及切面结构进行了观察。结果表明，三种类型的瘢痕组织与正常皮肤有着显著区别，而三种类型瘢痕之间既有相似之处，也有着明显不同之处。造成三种类型瘢痕组织与正常皮肤之间以及三种类型瘢痕之间差别的原因，在于彼此结构和形状确有着质的差别 To investigate the ultrastructural differences of three types of scars, the authors observed the surface and section structures of six cases of hypertrophic scars, three cases of keloids and four cases of atrophic scars using scanning electron microscopy. The results showed that there are significant differences between the three types of scar tissue and normal skin, while there are similarities between the three types of scar and also have significant differences. The reason for the difference between the three types of scar tissue and the normal skin and between the three types of scar is that there is a qualitative difference in the structure and shape of each other