Breast cancer is the most common type of cancer in Iraq. The incidence of breast cancer has increased among Iraqi women in the past two decades, as it represents one of the main threats to women's health. This steady aimed To evaluate the level of some immune factors Interleukin-1β (IL-1β), Interferon- γ (IFN–γ), and Matrix metalloproteinase-9 (MMP-9), and find the relationship between these immune factors in Iraqi women diagnosed with breast cancer. Material and method Fifty women diagnosed with breast cancer were enrolled in this study in addition to 25 healthy individuals as a control group. Level (IL-1β, IFN-γ, MMP-9) was measured using ELISA technology. Conclusion The expression level of (IL-1β, IFN-γ, MMP-9) increased in women with breast cancer in different age groups, but the age group (40-49) also recorded the highest expression of these cellular mediators. Regarding the relationship of (MMP-9), it was not significant with (IL-1β), but it was significant with (IFN-γ) (p≤0.05), and about the relationship between (IL-1β) and (IFN-γ) it was no significant negatively, that Increased level of (IL-1β, IFN-γ, MMP-9) expression could be a predictive marker of breast cancer.