Traditional biological interpretations of sex and gender create a binary concept primarily in Western culture by having two strictly fixed options of male or female. This binary notion of gender and sex has been challenged by both Anne Fausto-Sterling and Oyeronke Oyewumi. Sterling argues that rather than having two separate purposes, biological gender manifests itself across a continuum of possibilities. This spectrum of anatomical deviation in itself should be enough to override the simplistic notion of just two genders. Oyewumi acknowledges that there is a binary in Western culture, but disagrees that this idea is universal. He goes on to say that biological determinism in the West is the “conception that biology provides the logical basis for the organization of the social world…therefore cultural logic is biological.” (Oyewumi 2006:544) The criticisms of these two authors will provide an understanding of why gender and sex do not only have a binary definition. The idea of ​​binary is imposed when a child is born. By looking between the legs at birth, the baby is assigned a gender label that he will carry with him throughout his life. This idea of ​​sex as a fixed, natural and immutable biological aspect was criticized by feminists in the 1970s. In line with these criticisms, Fausto-Sterling's article The Five Sexes: Why Male and Female Are Not Enough, addresses the birth of intersex children. In this case, the standard model (sex/gender distinction) is considered incorrect regarding the notion that there are only two sexes, male and female. She argues that the two-sex system dominant in Western society would also be out of place on a biological level. It should instead be expanded beyond the narrow ca...... middle of paper ......rling and Oyeronke Oyewumi. Fausto-Sterling brings forward the idea that sex and gender should be viewed on a scale and not conformed to the binary. This spectrum can then be altered by society projecting what it considers normal onto people. These projections suggest a socially constructed definition of sex and gender and, therefore, may lead to greater discussion of how gender and sex are a cycle of social construction and biological determinism. This cycle of discussion can continue by looking at Oyewumi's work, when he talks about how society and biology influence each other. If we see that biology does not play a role in the universal definition of gender, then there must be other factors that define what it is. These two authors join in their critiques of the biological binary by acknowledging its presence, but also adding other ways of looking at sex and gender.