The coagulation cascade is a complex series of enzymatic reactions that lead to blood clot formation, involving intrinsic, extrinsic, and common pathways. It is crucial in clinical practice as it helps manage bleeding disorders, guides anticoagulant therapy, and informs surgical risk assessments. A key association is with disseminated intravascular coagulation (DIC), a serious condition where widespread clotting occurs, leading to organ dysfunction and bleeding.