<unk>  is a complex condition which increases the risk of thrombosis or thromboembolic disease. The predisposition to clotting, or thrombotic risk, can be multi-factorial, and is due to an abnormality in coagulation described as hypercoagulability. Hypercoagulability  is a component of  Virchow's Triad, which by itself or in synergy with stasis or trauma can predispose to clot formation. The thrombotic risk associated with<unk>  states is variable and depends on the underlying coagulopathy.<unk> s are classified as either inherited or a primary hypercoagulable state, acquired or a secondary hypercoagulable state, or mixed/unknown. Factor V Leiden and prothrombin gene mutations are the most common forms of inherited hypercoagulable states. Patients with<unk>  can have a family history of thrombosis, or present with frequent or unprovoked blood clots (primarily as deep vein thrombosis or pulmonary embolism), thrombosis at a young age, or blood clots in multiple or unusual sites.<unk>  screening is controversial, but may aid in managing the initiation and duration of anticoagulation in affected patients and primary prevention in relatives.
Thrombophilia
Basophilia
Giant platelet disorder
Hemophilia
Essential thrombocytosis
Eosinophilia
Heparin-induced thrombocytopenia
DIC