The aim of this article is to discuss some of the problems with the feminist theoretical concepts sex and gender and the distinction between them. The focus is on the American historian Thomas Laqueur's use of sex and gender and his concept of the one-sex model. In the critique of Laqueur and in the search for a more ''inclusive'' sex/gender concept, I draw primarily from the work of Lundgren and Kroon and their version of the concept of the symbolic body, which implies that it is impossible to distinguish between ''only'' body and the symbols of the body.