This article analyzes certain aspects of the structure of bioethics as a discipline. It begins by arguing that bioethics is an academic discipline of a pragmatic nature and then puts forward a classification of the main problems, issues, and concerns in bioethics, using this classification as a way to outline the limits and framework of the field. Pushing further, it contends that comprehensive treatment of any topic in bioethics requires that three normative dimensions be taken into account. It concludes that (...) the classification of the issues and analysis of each issue's normative dimensions can provide valuable contributions toward understanding the sui generis structure of bioethics as a pragmatic discipline. (shrink)