卡介苗（bacille calmette-guerin，BCG）是目前唯一应用于临床预防结核病的疫苗。尽管卡介苗是相对安全疫 苗，但它常见、严重异常反应及处理是每个儿科医师应该重视并熟悉的。卡介苗的常见异常反应包括：局部脓肿、淋巴结 炎、结核疹（硬皮病红斑、阴囊苔藓和结核丘疹坏死）、骨髓炎和全身播散性卡介菌感染等。文章对上述常见异常反应诊断 及治疗进行综述

　BCG vaccine is the only vaccine currently available for clinical prevention of tuberculosis. Though relatively safe, the common or severe adverse events after BCG and their managements should be paid attention and familiarized by pediatricians. Common abnormal reactions of BCG vaccine include local abscess, lymphadenitis, tuberculid (scleroderma erythema, tinea of the scrotum and papulonecrotic tuberculid), osteomyelitis and systemic disseminated BCG infection. In this paper, the diagnosis and treatment of these common abnormal reactions will be reviewed.