Abstract : Observation of medical practices still show that, in some institutions, obtaining consent could be in the mode of a trivialization, or even some administrative automaticity. To ensure a truly informed choice, this article explains why the information in the sensitive field of reproductive medicine and perinatology should remain an act of care and relationship. It outlines why medical information issued to couples must take into account not only validated data, but also the doubts and uncertainties. This is especially true when risk management because the meaning we give to the acceptance of risk is not simply the result of a calcul of probability but also the result of a social construction. All signed consent and collected outside of such an approach to quality and completeness of the information would be considered questionable.