This study dealt with the relationships among the frequency of messages about traditional gender roles that women receive throughout their growing up processes, their acceptance of external influence and their self-alienation. In addition, it was examined whether the relationship between traditional gender roles and acceptance of external influence, and the relationship between traditional gender roles and self-alienation, are established through internalized sexism. The participants of the study were 443 women studying at the undergraduate level at various universities of Turkey. For the study, the Traditional Gender Roles Subscale of the Socialization of Gender Norms Scale, the Internalized Sexism Scale and the Authenticity Scale's dimensions of Acceptance of External Influence and Self-Alienation were used. The results revealed the full mediating role of internalized sexism in the relationship between the frequency of traditional gender role messages and acceptance of external influence and self-alienation. The results were discussed and interpreted within the framework of the relevant literature, and suggestions were presented for future studies.