Asymptomatic individuals with<unk><unk>  (e.g., heterozygous factor V Leiden) are not normally treated unless additional risk factors for thrombosis are also present. An example is surgery, in which perioperative short-term anticoagulation may be used. However, people with homozygous factor V Leiden, and people with heterozygous factor V Leiden who have an additional thrombophilic condition (e.g., antithrombin deficiency, protein C deficiency, or protein S deficiency), should be considered for lifelong oral anticoagulation therapy. People with<unk><unk>  and initial DVT are treated with a standard anticoagulant regimen, for instance intravenous heparin therapy followed by oral anticoagulation.
Activated protein C resistance
Protein C deficiency
Factor VII deficiency
COAT platelet defect
Primary fibrinogenolysis
Factor XII deficiency
Factor XIII deficiency
Antithrombin III deficiency