en <span style=font-size:12pt><span style=font-family:Times New Roman,serif><strong><span style=font-size:10.0pt><span style=font-family:Cambria,serif><span style=color:#4f81bd>Aims:</span></span></span></strong><span style=font-size:10.0pt><span style=font-family:Cambria,serif> Early detection of breast cancer through mammography is effective in reducing mortality associated with this cancer. This study aimed to determine the effect of Protection Motivation Theory-based education on the intention to undergo mammography among teachers in District 4 of Tehran.</span></span></span></span><br> <span style=font-size:12pt><span style=font-family:Times New Roman,serif><strong><span style=font-size:10.0pt><span style=font-family:Cambria,serif><span style=color:#4f81bd>Materials & Methods:</span></span></span></strong><span style=font-size:10.0pt><span style=font-family:Cambria,serif> This interventional study was conducted on 250 teachers in Tehran, who were randomly divided into an intervention group (125 participants) and a control group (125 participants) in 2024. The data collection tool was a questionnaire on women’s participation in breast cancer screening based on protection motivation theory, which included 56 items and 8 dimensions. The educational intervention based on protection motivation theory was conducted in four sessions, held bi-weekly, for the intervention group. Data were analyzed by SPSS 26 using chi-square tests, paired t-tests, and covariance analysis.</span></span></span></span><br> <span style=font-size:12pt><span style=font-family:Times New Roman,serif><strong><span style=font-size:10.0pt><span style=font-family:Cambria,serif><span style=color:#4f81bd>Findings:</span></span></span></strong><span style=font-size:10.0pt><span style=font-family:Cambria,serif> After the educational intervention, the mean scores of the constructs of protection motivation theory and the intention to undergo mammography showed a significant difference between the intervention and control groups (p<0.05).</span></span></span></span><br> <span style=font-size:12pt><span style=font-family:Times New Roman,serif><strong><span style=font-size:10.0pt><span style=font-family:Cambria,serif><span style=color:#4f81bd>Conclusion:</span></span></span></strong><span style=font-size:10.0pt><span style=font-family:Cambria,serif> The educational intervention using protection motivation theory is effective in increasing women’s intention to participate in breast cancer screening programs and undergo mammography.</span></span></span></span> Breast Cancer,Mammography,Motivation, 289 296 http://hehp.modares.ac.ir/browse.php?a_code=A-10-89092-1&slc_lang=en&sid=4 S. Hosseinzadeh 1003194753284600368134 1003194753284600368134 No Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran A. Bahmani 1003194753284600368135 1003194753284600368135 Yes Department of Public Health, School of Health, Kurdistan University of Medical Sciences, Sanandaj, Iran S. Nili 1003194753284600368136 1003194753284600368136 No Social Determinants of Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran A. Fallahi 1003194753284600368137 1003194753284600368137 No Social Determinants of Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran