Lupus vulgaris is one of the commonest type of skin tuberculosis,which is skin lesion caused by direct skin violation of mycobacterium tuberculosis or mycobacterium tuberculosis spreading from other organ tuberculosis foci to skin tissue through blood or lymphatic system.Because the disease affects different areas and displays complex clinical manifestations,it is prone to be misdiagnosed.This paper reports 1 case of lupus vulgaris treated in our hospital in February 2015,which was misdiagnosed due to its similar onset symptoms and features with herpes simplex.Review of medical history found that this case was misdiagnosed for multiple times,and leading to protracted illness.Through anal-ysis,this paper further illustrated the clinical features and misdiagnosis causes of this disease and reminded physicians of the understanding of the disease in order to serve the patients better.%寻常狼疮是皮肤结核病中最常见的一种类型，是由结核分枝杆菌直接侵犯皮肤或者由其他脏器结核灶内的结核分枝杆菌经血行或淋巴系统播散到皮肤组织所致的皮肤损害。因该病累及部位不同，临床表现也复杂多变，极易造成误诊。本文报道1例2015年2月在本院就诊的寻常狼疮患者，因起病症状、病情发作特点与单纯疱疹相似而误诊，追朔病史发现此病例多次误诊、致使病情迁延。本文通过对其分析，进一步阐述该病的临床特点及误诊原因，提醒医师对本病的认识，以便更好地服务于患者。
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