We explored the concept body image disturbance (BID) by utilizing the subjective experience of 32 women (aged 20-39 years) diagnosed with AN (DSM-V). Using methods from Grounded Theory we identified four phenotypes of BID-"Integration," "Denial," "Dissociation," and "Delusion"-which differed according to whether the patients overestimated their own body size ("Subjective reality"), and whether they acknowledged the objective truth that they were underweight ("Objective reality"). The results suggest that BID should be conceptualized as a dynamic failure to integrate subjective experiences of one's own body appearance with an objective appraisal of the body. Conceptual, diagnostic and clinical implications are discussed.