hemophilia B
- noun
- /ˌhiːməˈfɪliə biː/
- Specialized
- Many cases of hemophilia B are inherited and detected early in childhood.
Examples
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The patient was diagnosed with hemophilia B after experiencing severe bleeding after a minor injury.
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Treatment for hemophilia B often involves regular infusions of clotting factor IX.
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He was diagnosed with hemophilia B at a young age.
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Does hemophilia B require special medical attention?
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People with hemophilia B experience prolonged bleeding because their blood lacks enough clotting factor IX.
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Children with hemophilia B often require regular treatments to help prevent bleeding episodes.
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Due to his hemophilia B, he had to be cautious when participating in physical activities.
Synonyms
A rare bleeding disorder that people have from birth because their blood lacks a clotting protein called factor IX
Surface Forms
Morphology
hemophilia + B
The phrase combines the noun 'hemophilia' (a bleeding disorder) with the letter 'B' functioning as a subtype label, so a learner who knows 'hemophilia' and that letters commonly mark types will infer this is a specific kind of hemophilia. The clinical detail (factor IX) is technical, but the core meaning 'hemophilia of type B' is compositionally derivable from the constituents.
Etymology
Hemophilia B comes from old word parts: hemo means 'blood' and philia means 'love', which gives a strong image of blood that keeps flowing. The letter B marks a different type from A and helps you remember it because this type is often called 'Christmas disease' after the first patient, Stephen Christmas, and it is caused by a missing blood protein called 'factor IX' that makes bleeding last longer.