Mild hemophilia B
ORPHA:169799· ICD-10 D67
Definition
A mild form of hemophilia B characterized by a small deficiency of factor IX (biological activity between 5 and 40 IU/dL) leading to abnormal bleeding as a result of minor injuries or following trauma, surgery or tooth extraction. Spontaneous hemorrhages do not occur. The condition may affect males and female carriers of disease-causing mutations.
- Prevalence
- 1-9 / 1 000 000
- Inheritance
- X-linked recessive
- Age of onset
- Infancy, Neonatal