Objectives:The aim of this study was to determine the relationship between awareness of healthy lifestyle and breast cancer perception among women of reproductive age. Methods:This descriptive co relational study was conducted on 642 women. Data were collected using the sociodemographic data form, the Healthy Lifestyle Awareness Scale (HLAS), and the Breast Cancer Perception Scale (BCPS). A moderate, significant, and positive correlation was found between the HLAS total score and the scores obtained from the BCPS sub-dimensions of perceived knowledge and perceived treatment belief. Results:The regression analysis on the relationship between the scores of HLAS's change sub-dimension and BCPS sub-dimensions showed that as the scores of perceived knowledge and perceived treatment belief sub-dimensions increased, the change scores increased significantly. The explanatory value of these findings was 27.1%. Conclusion:It has been demonstrated that women with advantages of high educational and economic levels, an income-generating job, and working in urban areas have higher perceived knowledge and treatment belief levels and low levels of fear with regard to breast cancer.