口腔扁平苔藓(OLP)是一种慢性浅表性皮肤黏膜炎性疾病,发病率约为0.5%~2.2%,癌变率为1%~3%,世界卫生组织将其列为癌前病变。唐国瑶等[1]研究显示,OLP是目前口腔黏膜病中仅次于复发性阿弗他溃疡的多见病,居第2位。该病病因尚不明确,可 Oral lichen planus (OLP) is a chronic, superficial mucocutaneous inflammatory disease with a prevalence of about 0.5% to 2.2% and a cancerous rate of 1% to 3%. The World Health Organization lists it as a precancerous lesion. Tang Guoyao et al [1] Studies have shown that, OLP is the second most common cause of recurrent aphthous ulcer in oral mucosal disease, ranking No. 2. The etiology of the disease is not yet clear, but