Normative medicine is a new approach to health and disease based on Ca
nguilhem's philosophy: The normal and the pathological. In the past, d
isease was nearly synonymous with ill health. Advancing technology rev
eals more and more pre-clinical aberrations that are not fully fledged
diseases, and cannot be regarded as ill health. Medicine lacks clear
guidelines for dealing with them. While competent in specifying how to
treat, it generally fails to decide correctly when to intervene in th
e evolving process. This is the main source of medical iatrogenesis. N
ormative medicine is more concerned with health itself and less with d
iseases. It provides criteria when to intervene in the disease process
.