Abstract: Objective To investigate the status of knowledge, attitude, and practice regarding breast cancer prevention among females in Yuncheng City, and provide the basis for improving the ability of females in Yuncheng City to prevent breast cancer. Methods From October to December 2022, a convenient sampling method was adopted to randomly select one community （village） in one city, two county‐level cities, and ten counties under the jurisdiction of Yuncheng City, and 125 female residents were selected from each community （village） to conduct a survey on knowledge, attitude, and practice of breast cancer prevention. Descriptive epidemiological analysis method was used to analyze the status of knowledge, attitude, and practice regarding breast cancer prevention. The influence factors were analyzed by univariate and multivariate analysis methods. Results A total of 1 491 adult females from Yuncheng City were included in the study. The scores of knowledge, attitude, and practice of breast cancer prevention were （3.91±1.70）, （38.65±5.12）, and （2.06±0.83） respectively. Multiple linear regression analysis suggested that age （β'=-0.658）, education level （β'=0.189 for secondary school/high school, β'=0.279 for junior college or above）, history of breast nodules （β'=0.184）, family history of breast cancer （β'=0.110）, and knowledge source （β'=-0.216 for network, β'=-0.073 for others） were the influencing factors of breast cancer prevention knowledge score. Age （β'=-0.116）, education level （β'=0.185 for secondary school/high school, β'=0.587 for junior college or above）, history of breast nodules （β'=0.698）, family history of breast cancer （β'=0.147）, type of medical insurance （β'=0.195 for urban workers, β'=0.469 for urban and rural residents）, and knowledge score （β'=0.920） were the influencing factors of breast cancer prevention attitude score. Age （β'=-0.053）, education level （β'=0.098 for secondary school/high school, β'=0.370 for junior college or above）, history of breast nodules （β'=0.392）, family history of breast cancer （β'=0.194）, type of medical insurance （β'=0.421 for urban workers, β'=0.061 for urban and rural residents）, knowledge score （β'=0.326）, and attitude score （β'=0.512） were the influencing factors of breast cancer prevention practice score among females. Conclusions The score of knowledge, attitude, and practice of breast cancer prevention among females in Yuncheng City is at a medium level. It is necessary to pay attention to the population and strengthen effective intervention measures according to the relevant influencing factors, so as to better improve the current situation of knowledge, attitude, and practice of breast cancer prevention and improve its prevention and screening level.

Key words: Breast cancer, Female, Knowledge, attitude, and practice, Prevention, Influencing factor