Materials and Methods: This study was a descriptive/ cross-sectional research carried out on 400 women aged 20-50 years. The samples were recruited randomly from among female clients of health centers in Tabriz. A questionnaire and an observational checklist were used to elicit socio-demographic information and status of BSE performance among women. Content validity was used for validation and Cronbach’s alpha was calculated (0.80) for reliability of instrument. Descriptive and inferential statistics were used to analyze data through SPSS software.

Results: The findings of this research showed that only 18.8% of women performed BSE. Among them, 46.67% performed BSE monthly, and 40% at the end of menstruation. The initiation age of BSE in 77% was between 21-30 years of age. It is considerable that 54.7% of them had received no advice on BSE from physicians and midwives. The majority of women did not perform the various steps of BSE. The quality of this screening was very desirable in 2 (0.5 %), desirable in 5 (1.3%), average in 19 (4.8%), undesirable in 36 (9%), and very undesirable in 338 (84.5%) women. Chi-square test showed a significant relationship between the quality of BSE performance and level of education, employment, breastfeeding quality, and family history of breast cancer (P < 0.05).

Conclusion: The findings showed that the status of BSE performance was very poor. Therefore, to encourage women to use BSE correctly and regularly, education programs should be performed through various media including television, radio, and leaflets. The role of Health personnel in this field is very important.