Haemophilia

Commercially produced factor concentrates such as

Queen Victoria passed haemophilia on to many of her descendants.

Haemophilia (also spelled hemophilia) is a group of hereditary genetic disorders that impairs the body's ability to control blood clotting, which is used to stop bleeding when a blood vessel is broken. Haemophilia A (clotting factor VIII deficiency) is the most common form of the disorder, present in about 1 in 5,000–10,000 male births. Haemophilia B (factor IX deficiency) occurs in around 1 in about 20,000–34,000 male births.

单词	Hemophilic arthropathy
释义	Hemophilic arthropathy 英语百科 Haemophilia Haemophilia (also spelled hemophilia) is a group of hereditary genetic disorders that impairs the body's ability to control blood clotting, which is used to stop bleeding when a blood vessel is broken. Haemophilia A (clotting factor VIII deficiency) is the most common form of the disorder, present in about 1 in 5,000–10,000 male births. Haemophilia B (factor IX deficiency) occurs in around 1 in about 20,000–34,000 male births.
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Hemophilic arthropathy

Haemophilia