This study investigated the relationship between disorders of the body self and personality defence mechanisms of women with bulimia nervosa. It was hypothesized that women with bulimia nervosa would not form a homogeneous group in terms of the body self disorder and that the extent of this disorder would be signifi cantly related to personality functioning in terms of the defence styles adopted. The hypothesis was investigated with the aid of two questionnaires: the Body Self Questionnaire (Mirucka, 2005) and the Defence Style Questionnaire by Andrews, Singh and Bond (1993). 36 women aged between 15 and 25 years, who fulfi lled the DSM IV criteria for bulimia nervosa participated in the study. Conclusions from the study were that: (1) the body self of bulimic women is differentially disordered at three levels: profound, moderate and minimal. (2) the degree to which the body self was found to be disordered is signifi cant in psychological terms as it is related to the defence style adopted by the bulimic personality. The profound and moderate levels of body self disorder related to immature defence styles, while minimal levels of disruption to body self were associated with neurotic and mature styles.