Methods The examination of hair perforation in vitro and observation by SEM on the healthy hairs of different age groups damaged by tinea capitis strains and tinea corporis strains were carried out.

• 方法 临床采集不同年龄组的健康人毛发，分别进行头癣株和体癣株的毛发穿孔试验及扫描电镜观察。