Heterologous fertilization and surrogacy. Human reproduction and ethical challenges for society. New techniques in human reproduction are a challenge for bioethics, since, in order to overcome infertility, some techniques produce the breaking of natural human ties once they are not necessary anymore. In particular, it is here considered the case of surrogacy and heterologous fertilization. But what are the peculiar and essential links that are threatened? It is urgent to investigate the aspects that science and psychology tell us about the bond and promote their value, to make well-informed choices.
Keywords: Reproduction; heterologous fertilization; surrogacy; biological bond, affectional bond, ethics.