severe hemophilia B
MONDO:0015715Mondo
Findings
No curated finding names severe hemophilia B yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Severe hemophilia B is a form of hemophilia B characterized by a large deficiency of factor IX leading to frequent spontaneous hemorrhage and abnormal bleeding as a result of minor injuries, or following surgery or tooth extraction.
Definition from the Mondo Disease Ontology (MONDO:0015715), read 2026-09-29. CC BY 4.0.
Genes
1 gene
Germline variants in the gene encoding each protein, as classified by GenCC submitters, each in their own words. Limited, disputed and refuted submissions are listed too.
- F9HGNC:3551
- Supportive · Orphanet · X-linked · 2021
Where it sits
- A kind of
Other names
3 names
Resolves to: severe hemophilia B
- Also called
- severe factor IX deficiencysevere haemophilia type Bsevere hemophilia type B