Drug abuse is found in all social classes and occurs among people of varying ages. Abuse creates both social and medical damages for those who abuse, which makes this problem a large social problem. In the thesis a theory about the creation of social identity and gender system is the basis.The purpose of this thesis is to, through a literature review, illustrate how addicted women's social identity is influenced by the immediate social context and how women's social subordination in society can consolidate a destructive social identity formation. The questions were: What are the main features of previous research regarding abuse of women's social interactions and identity formation? How can abusive women's social identity formation interpreted from a social psychological perspective and a gender perspective The methodology for collecting data was a literature search on Scopus, PsycINFO, ProQuest, and Luleå University's own database Primo. The results show that addicted women's social identity formation occurs with and within a group consisting of other drug users and that within the addiction culture there are unwritten rules, that make the women subordinate to men as in society at large.