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Background: Breast cancer is one of the most common malignant tumors that endanger women's health internationally, relatively uncommon in men, accounting for only 1% of all cancer cases. Location, way of life, age at marriage, and obesity are a few environmental variables that increase the risk of breast cancer. Aim of study: the study aims to explain how the pro-inflammatory cytokines (IL-6) induce the inflammatory events in patients with breast cancer and to describe whether cyclooxygenase-2 promotes tumor growth in breast cancer or not. Materials and methods: The current case-control cross-sectional study included 45 patients with a history of breast cancer, and it was done in multiple places in Hilla, Babylon Province, between November 2022 and March 2023.Interlukin-6 and Cyclooxygenase-2 by QPCR. Results: The results have shown a significant increase of IL-6 (P < 0.05) in patients compared with control. Also, the results have shown a significant increase (P < 0.05) of COX2 in patients compared with control. Conclusion: There is a significant increase in the means of Interlukin-6 and Cyclooxygenase-2 in the patients with breast cancer. [ABSTRACT FROM AUTHOR]