Medicine, Health Care and Philosophy

, Volume 15, Issue 4, pp 373–382

The principle of proportionality revisited: interpretations and applications

Scientific Contribution

DOI: 10.1007/s11019-011-9360-x

Cite this article as:
Hermerén, G. Med Health Care and Philos (2012) 15: 373. doi:10.1007/s11019-011-9360-x


The principle of proportionality is used in many different contexts. Some of these uses and contexts are first briefly indicated. This paper focusses on the use of this principle as a moral principle. I argue that under certain conditions the principle of proportionality is helpful as a guide in decision-making. But it needs to be clarified and to be used with some flexibility as a context-dependent principle. Several interpretations of the principle are distinguished, using three conditions as a starting point: importance of objective, relevance of means, and most favourable option. The principle is then tested against an example, which suggests that a fourth condition, focusing on non-excessiveness, needs to be added. I will distinguish between three main interpretations of the principle, some primarily with uses in research ethics, others with uses in other areas of bioethics, for instance in comparisons of therapeutic means and ends. The relations between the principle of proportionality and the precautionary principle are explored in the following section. It is concluded that the principles are different and may even clash. In the next section the principle of proportionality is applied to some medical examples drawn from research ethics and bioethics. In concluding, the status of the principle of proportionality as a moral principle is discussed. What has been achieved so far and what remains to be done is finally summarized.


Appropriateness Excessiveness Means and ends Precautionary principle Principle of proportionality 

Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Department of Medical Ethics, Biomedical CentreLund UniversityLundSweden

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