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Christmas disease

Christmas disease

8.2
A rare bleeding disorder that people have from birth because their blood lacks a clotting protein called factor IX
  • noun
  • /ˈkrɪs·məs dɪˈziːz/
  • Specialized
translation icon : enfermedad de Navidad
  • Patients with Christmas disease require regular infusions of factor IX to prevent bleeding episodes.

Examples

  • The distinction between hemophilia A and Christmas disease is important for proper medical management.

  • His nephew was diagnosed with Christmas disease, so the family sought specialized treatment.

  • He was diagnosed with Christmas disease at a young age.

  • Many people with Christmas disease require regular treatment.

  • Patients with Christmas disease require regular infusions of factor IX to prevent bleeding episodes.

  • His nephew was diagnosed with Christmas disease, so the family sought specialized treatment.

  • The distinction between hemophilia A and Christmas disease is important for proper medical management.

Synonyms

hemophilia
vsChristmas disease
  • Specialized
7 6.7

A condition you are born with where blood keeps bleeding after a cut

is one specific inherited form caused by factor IX deficiency
hemophilia B
vsChristmas disease
  • Specialized
6.8

A rare inherited blood condition in which blood does not stop bleeding easily

is the same medical condition but called by an alternate name

Surface Forms

Morphology

Christmas + disease

The compound pairs a cultural proper name ('Christmas') with the generic noun 'disease', but the specific medical referent (hemophilia B, a factor IX deficiency) is an eponymous/medical label not deducible from the constituents. A B1 learner who knows 'Christmas' and 'disease' would likely infer a seasonal or culturally linked illness, not a rare clotting disorder, so the meaning is not transparently derived.

Etymology

Christmas disease gets its name from a boy called Stephen Christmas, who was the first patient doctors described with this type of hemophilia. So the name refers to 'hemophilia B', a rare blood problem where people bleed more than usual.