This chapter argues the use of the term 'intersexualization' rather than 'intersexuality', because the process of the pathologization of and the medical construction of intersexuality is very complex and combines a variety of disciplines. It focuses on the interconnection of ethnology, psychoanalysis and medicine by interrogating the collaborative work between four academics coming from these backgrounds, and ethnography as a historically distinct method. In defining the specific pathologizing narrative which occurs in their work, the chapter explores the collaborative works of these researchers and their role in the production of knowledge, the process of cross-cultural intersexualization. It discusses intersecting processes of knowledge production in which assumptions about ethnicity or culture and assumptions about sexuality, gender identity and the body feature in intersexualization. The chapter explores the background of Anthropology and its relation to Papua New Guinea, as well as the centrality of sex and gender in this relationship.