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Haemophilia (British English), or hemophilia (American English) [6] (from Ancient Greek αἷμα (haîma) 'blood' and φιλία (philía) 'love of'), [7] is a mostly inherited genetic disorder that impairs the body's ability to make blood clots, a process needed to stop bleeding.
X chromosome. The factor IX gene is located on the X chromosome (Xq27.1-q27.2). It is an X-linked recessive trait, which explains why males are affected in greater numbers. [9] [10] A change in the F9 gene, which makes blood clotting factor IX (9), causes haemophilia B. [11]
This is an incomplete list, which may never be able to satisfy certain standards for completion.. There are many conditions of or affecting the human hematologic system—the biological system that includes plasma, platelets, leukocytes, and erythrocytes, the major components of blood and the bone marrow.
"Hemophilia: The Royal Disease" Yelena Aronova-Tiuntseva and Clyde Freeman Herreid; Family tree of Queen Victoria and her descendants; Haemophilia in Queen Victoria's Descendants. Archived 2006-11-18 at the Wayback Machine; Victor A. McKusick (August 1965). "The Royal Hemophilia". Scientific American. pp. 88– 95
Hemophilia C; Other names: Plasma thromboplastin antecedent (PTA) deficiency, Rosenthal syndrome: Haemophilia C caused by deficiency in Factor XI [1] Specialty: Haematology: Symptoms: Oral bleeding [2] Causes: Deficiency of coagulation factor XI [1] Diagnostic method: Prothrombin time [1] Prevention: Physical activity precautions [1] Treatment ...
Acquired haemophilia A (AHA) is a rare but potentially life-threatening bleeding disorder characterized by autoantibodies directed against coagulation factor VIII.These autoantibodies constitute the most common spontaneous inhibitor to any coagulation factor and may induce spontaneous bleeding in patients with no previous history of a bleeding disorder.
In 2016, the NHF began recognizing March as Bleeding Disorders Awareness Month to raise awareness of hemophilia and von Willebrand disease among stakeholders. [9] Also in 2016, as part of the foundation's awareness efforts, it started the Red Tie Campaign, with the symbol representing blood and the community coming together to help those with ...
Joint capsule. Haemophilia A's phenotype has a quite wide range of symptoms encompassing both internal and external bleeding episodes. Individuals with more severe haemophilia tend to experience more intense and frequent bleeding, whereas those with mild haemophilia typically exhibit milder symptoms unless subjected to surgical procedures or significant trauma.