<unk>  is a deficiency in the production of<unk> <unk>  (FXII), a plasma glycoprotein and clotting<unk>  that participates in the coagulation cascade and activates<unk>  XI. FXII appears to be not essential for blood clotting, as individuals with this condition are usually asymptomatic and form blood clots in vivo. FXII deficiency tends to be identified during presurgical laboratory screening for bleeding disorders. The condition can be inherited or acquired.
Factor XII deficiency
Factor VII deficiency
Factor XIII deficiency
Factor I deficiency
COAT platelet defect
Factor X deficiency
Protein C deficiency
Vitamin K deficiency