Dead-birth or stillbirth is a recognized medical phenomenon. Unfortunately, the psychological aspects of stillbirth received scant and minor attention from researchers and practitioners alike. In contrast with the "mentalistic" perspective on mourning, propagated by Freud and his followers, we present an alternative "socio-semiotic" approach to mourning. This approach may help us to understand the unique difficulty, which is associated with stillbirth mourning. In this paper, we highlight the major difficulties facing the mourning process of parents who experienced stillbirth. Our main argument is that the lost fetus is conceived by the society as a "non-person" and as such does not receive the legitimacy to be mourned. This situation creates strong tension between the personal grief of the parents and their wish to mourn the lost fetus and the lack of legitimate social practices for mourning. This gap might result in a psychopathological response. This article concludes by providing suggestions and guidelines for improving treatment provided for stillbirth parents.