Fibrin Degradation Products (FDPs) are fragments of fibrin that are released into the bloodstream when fibrin clots are broken down by plasmin, a proteolytic enzyme. Elevated levels of FDPs indicate increased fibrinolysis, suggesting active clot breakdown. They are often measured in conditions involving thrombosis, disseminated intravascular coagulation (DIC), pulmonary embolism, and deep vein thrombosis to assess coagulation and fibrinolytic activity. FDPs serve as important biomarkers in diagnosing and monitoring various hemostatic disorders.