網路是青少年日常生活的一部份，藉由網路搜尋健康訊息是一明顯趨勢，尤其正值對性好奇的青少年，在網路上輕易就能接觸性相關訊息，但網路充塞各種資訊，對青少年性健康之影響宛如雙刃刀，其利與弊共存。本文陳述台灣青少年性健康之四大困境，並剖析網路使用對青少年之弊與利，弊包括網路色情充斥、網路交友對性健康之潛在風險，而利則涵蓋網路可提供性教育之最佳溝通平台，及進行性議題之相關研究與介入。最後針對護理人員於青少年性健康促進之功能，在實務上提出學校衛生與臨床護理之建議，在研究上建議可以網路進行性健康之量性與質性研究，並提供性教育教學網頁設計之注意事項。

Internet use is an important part of the daily life of adolescents. The ease of searching the internet for information makes finding information on sex, a topic of particular interest to adolescents, easy. Although the internet is replete with sexual information, the influence of internet use on adolescents' sexual health is analogous to a double-edged sword. This article identifies the four main sexual dilemmas facing Taiwan adolescents and analyzes the pros and cons of internet use with regard to adolescents’ sexual health. Cons include the predominance of internet pornography and the potential risks of making friends online. Pros include the internet’s role as an optimal communications platform and tool for sex-related research. We suggest that nurses have a unique role and functions to play in promoting adolescent sexual health. We also offer recommendations for school health nursing and clinical nursing. Further internet-based quantitative and qualitative research is necessary to clarify relevant sexual health issues. Finally, we offer design suggestions for sexual education homepages.