Fibrinogenolysis, also known as fibrinolysis, is the process by which fibrinogen, a protein that plays a key role in blood clotting, is broken down. While fibrinogenolysis refers specifically to the breakdown of fibrinogen, synonyms for this process also include fibrin degradation, fibrin degradation products (FDPs), thrombolysis, and clot lysis. All of these terms refer to the same process by which blood clots are dissolved and a person's risk of developing a thrombotic event, such as a stroke or heart attack, is reduced. Understanding fibrinogenolysis is critical for diagnosing and treating conditions that affect the blood clotting system.