Social representations of biological child in couples who underwent reproductive treatment were studied. Our objectives were to analyze the life trajectory of the couple from the moment infertility was diagnosed and identify the social representations of biological children. Five couples of Great Vitória (Espírito Santo State, Brazil) were interviewed and none of them had success with respect to pregnancy. We used semi-structured interviews, individually taken. The script followed the same pattern for both the man and the woman, including items about the acceptance of the infertility diagnosis, the kind of treatment, the meaning of motherhood, fatherhood, marriage and biological child. The analysis of the results pointed to a strengthening of the bond in the marriage after the acceptance of the infertility diagnosis and highlighted the importance that couples attribute to the biological child. The elements of social representation which appear prominently were: "sangue do meu sangue" (expression equivalent to "my own flesh and blood"), progeny, physical resemblance, social pressure.
reproductive technologies; social representations; biological child