Ethics and preventive medicine.

Today different issues of medical ethics are in focus of the debate. A theoretical sequence starting at a "prepathogenic" level, ending in terminal care, is delineated to clarify the different characteristics of medical interventions. In this article we will discuss some ethical problems concerning interventions in the first parts of this sequence. Preventive measures at the population level are contrasted to the situation when the patient feels ill and calls for an intervention. Certain elements of paternalism are often interwoven in preventive medicine and health promotion.-The field of preventive medicine calls for a vivid theoretical and ethical discussion, which can mean better opportunities for effective prevention.