\n\n
女性雄秃又叫女性型脱发,我国患病率约6%[1],一般较男性发病晚、程度轻,表现为发际线保留不变,头顶、耳上、顶后区域均有稀疏。
\n\n治疗方法:口服非那雄胺(男性雄秃)或炔雌醇环丙孕酮片(女性雄秃),加用米诺地尔溶液外涂,维持治疗。如果病情严重,在药物治疗的基础上,可考虑自体毛发移植。
\n\n \n\n例如,头发受到很大的牵扯力,常见原因有:扎头发太紧导致的牵拉性脱发;不能控制地自己强行拔出毛发(俗称“拔毛癖”)。
\n\n另外,头皮软组织挫伤、手术过程中长时间的压迫等物理因素,也可以导致局部毛发脱落。
\n\n这种物理性因素去除后,头发大多数会重新长出来。
\n\n \n\n是指由多种因素引起的休止期毛囊异常增多。可引起休止期脱发的原因很多,如节食减肥,服用降压药或避孕药,手术,流产等。压力大或睡眠障碍等精神心理因素也会导致休止期脱发。
\n\n在诱因去除后的 4~6 个月,头发生长可恢复正常。
\n\n \n\n是一种自身免疫性的脱发疾病,除了头皮,眉毛、胡须、阴毛等全身毛囊都可能累及脱落。常见诱因有:压力大、焦虑、抑郁、失眠等精神心理因素;手术、身体创伤、疫苗注射、其他内分泌或自身免疫病(如桥本氏甲状腺炎)等。也可能找不到任何诱发因素。
通常斑秃造成的脱发是暂时的,尤其是脱发面积不大(少于 50% 头皮面积)的人,一般在治疗 3~6 个月后可重新长出头发[1]。治疗原则以积极寻找并去除发病诱因、调节自身免疫功能为主。
\n\n \n\n化疗药物通常为细胞毒性药物,主要作用于增殖活跃的肿瘤细胞,但同样对增殖活跃的毛囊也有毒性作用,从而导致化疗脱发。
\n\n通常在化疗后 2~3 周开始脱发,在化疗结束 2~3 个月后,可重新长出新发[1]。
\n\n \n\n瘢痕性脱发是由于各种皮肤局部疾病或损伤,引起毛囊及毛囊周围组织毁坏,无法再长出新的毛发,是不可逆的过程。常见的病因有:
\n\n瘢痕性脱发患者,除了局部毛发脱失外,最典型的特征是:
\n\n\n\n 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