觸染性軟疣(molluscum contagiosum)之致病原爲痘病毒(poxvirus)，其傳染模式爲接觸傳染，尤其是經由性行爲所導致之傳染。吾人由先前之文獻資料得知，此疾病之病灶主要分佈於頭頸、軀榦部，而確定診斷之方法爲病理切片於顯微鏡檢下發現疣體(molluscum bodies or inclusion bodies)。我們報告一起較罕見、原發於陰莖及其根部週圍之病例，並對觸染性軟疣略作回顧與整理。

Molluscum contagiosum, caused by a poxvirus, is infrequently encountered in urological practice. Physical contact is responsible for its transmission, especially during sexual intercourse in young adults. A confirmed diagnosis is obtained when molluscum bodies (inclusion bodies) are identified in biopsied specimens under microscopic examination. We report a case of penile molluscum contagiosum found at our outpatient department.