Hemophilia
Hemophilia (haemophilia; Greek haima - blood + Greek philia - addiction) is a hereditary disease transmitted by a recessive sex-linked type caused by a deficiency of plasma factors VIII or IX of blood coagulation; characterized by symptoms of increased bleeding.
Types of hemophilia:
- hemophilia A - caused by deficiency of factor VIII blood coagulation;
- hemophilia B (synonym: Christmas disease) - caused by a deficiency of plasma factor IX of blood coagulation;
- inhibitory hemophilia - caused by the appearance of anticoagulants in the blood, which inhibit the activity of factors VIII or IX of blood coagulation;
- cofactor hemophilia - caused by the absence of cofactors (activators) of factors VIII or IX of blood coagulation; the presence of this hemophilia has not been conclusively proven;
- vascular hemophilia (angiohemophilia) - characterized by a sharp increase in bleeding time and a decrease in the content or activity of coagulation factor VIII;
- thrombasthenic hemophilia (synonym: thrombasthenia) manifests itself in a dysfunction of platelets, with their number in the blood unchanged, the symptoms are similar to those observed in thrombocytopenic purpura.
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