G. Canguilhem posits in his "The Normal and the Pathological" two judgements: (1) the negation of objectivity of the pathology and the physiology because of the necessary interference of the value judgements between the two phases; (2) the importance of the biological normativity, that's to say, the understanding of the health as something essentially related to the norm and value. The health is not a fact, but a norm to which an organism makes an effort to attain by regulating its conducts. After this affirmation of the normativity in the demarcation between the normal and the pathological, I try to link it to the contemporaneous problematic of bioethics. And situating the health as a norm inside of the world of designing, I give a theoretical permission to the selective abortion in condition of a strict limitation, and to a certain positive interference to the genetic information for giving birth to a perfect baby.
