Highlights ■ No clinically significant differences were observed in platelet counts or global coagulation test results. ■ t-PA values decreased in patients with metastases. ■ PAI-1, DD, and MMP-9 levels increased in patients with metastases. ■ High levels of PAI-1 and MMP-9 in the early stages could indicate an aggressive course in patients. ABSTRACT Objective: The hemostatic and matrix metalloproteinase (MMP) systems are known to be altered in patients with breast cancer. This cross-sectional study aimed to explore the fibrinolysis […]