Many theoretical and experimental models indicate that androgen receptors can play an important role as prognostic factors in breast cancer. The aim of this study was to evaluate the correlations between the presence of androgen receptors on cancer cells and other selected prognostic and predictive factors with established clinical significance in women with breast cancer after radical surgical treatment. 488 adult females were included in the study, who underwent primary radical surgery for breast cancer. 428 patients (87.7%) had Patey's conservative radical mastectomy and 60 (12.3%) Halsted's radical mastectomy. The mean age at operation was 54.3, ranging from 32 to 79. The mean length of hospitalization was 7.2 days for the patients after Patey's mastectomy and 9.8 days for those after Halsted's mastectomy. The androgen receptor is the most frequently detected steroid receptor on breast cancer cells. Therapeutic efficacy of adjuvant hormone therapy was higher in the group of androgen receptor-positive patients than in androgen receptor-negative ones. The prognosis for androgen receptor-positive patients who underwent adjuvant hormone therapy was better than for those androgen receptor-positive patients who did not receive hormone therapy after primary radical surgery for breast cancer. Assessment of androgen receptor levels on cancer cells should become a routine procedure with patients undergoing primary radical surgery for breast cancer, as it seems to be an important predictive factor.