Background The following article illustrates the development of the identity configuration process of Chilean female patients with an eating disorder (ED) following successful psychotherapeutic treatment. Method This was a qualitative, descriptive study, which explored patients' subjective perspectives. In‐depth interviews were conducted with 20 female patients, and data were analysed according to procedures established by the Grounded Theory method. Results Four dimensions of identity were identified: (1) self‐image as idealised versus imperfect; (2) knowledge of one's inner world; (3) impulse control; and (4) life goals. Transcending these themes was the central notion of identity and a shift in this identity from someone who defines themselves by their eating disorder toward a more authentic and complex sense of self. Conclusion Results suggest that successful treatment facilitates the construction of an authentic identity, which includes developing a more realistic and complex understanding of themselves and their emotional and physical needs.