Background: Women in developed and poor nations more often get breast cancer. BSE involves women frequently checking their breasts for lumps or swelling to seek medical assistance. BSE lets women know how their breasts appear and feel so they can notify their doctors of any changes.

Objectives: To determine the knowledge and attitude of breast self-examination among nonmedical female student.

Method: A descriptive cross-sectional research was conducted at Diyala University/Governorate-Iraq on fourth-grade non-medical female students. A 700-student online questionnaire was employed. We got official agreements. Fisher's exact or chi-square test was employed. Statistical significance was set at p<0.05.

Results: The mean age of participants was 23.12±2.832 years. Internet was the top source of knowledge for 283 (40.4%) participants. BSE can aid in early breast cancer detection (568 (81.1%)) and I think BSE is a waste of time (606) had the greatest positive knowledge and attitude, respectively. 528 (75.4%) had negative knowledge. Negative information was considerably greater among Agriculture College female students, those without a history of breast cancer, and those who had not previously visited PHC for BSE or CBE (p<0.001). Science college women had a more positive attitude, P=0.009.

Conclusion: The findings of this study were considerable for inadequate knowledge and attitude towards BSE among female students.