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Hemophilia B



X-linked recessive genetic defects - how boys are affected
X-linked recessive genetic defects - how boys are affected
X-linked recessive genetic defects - how girls are affected
X-linked recessive genetic defects - how girls are affected
X-linked recessive genetic defects
X-linked recessive genetic defects
Blood cells
Blood cells
Blood clots
Blood clots


Hemophilia B

Alternative Names:

Christmas disease; Factor IX hemophilia
Symptoms:
  • Nosebleeds
  • Bruising
  • Spontaneous bleeding
  • Bleeding into joints and associated pain and swelling
  • Gastrointestinal tract and urinary tract hemorrhage
  • Blood in the urine or stool
  • Prolonged bleeding from cuts, tooth extraction, and surgery
  • Excessive bleeding following circumcision

Signs and tests:


Coagulation studies involving many tests are performed if the person tested is the first one in the family to have a bleeding disorder. Once the defect has been identified, other family members will need less testing to diagnose the disorder.




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