ühe või mitme hüübimisteguri kaasasündinud vaegusel või hüpofunktsioonil põhinev veritsustõbi, mille sümptomiteks on verejooksud pehmetesse kudedesse ja liigestesse ning haavade kauakestev veritsus, a hereditary hemorrhagic diathesis characterized by haemarthrosis and deep tissue bleeding, due to deficient generation of intrinsic thromboplastin, a hereditary, sex-linked blood defect occurring almost exclusively in males that is marked by delayed clotting of the blood with prolonged or excessive internal or external bleeding after injury or surgery and in severe cases spontaneous bleeding into joints and muscles and that is caused by a deficiency of clotting factors