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What are the different classes of severity of hemophilia?

8 doctors weighed in
Amanda Xi
General Practice
6 doctors agree

In brief: Two main types: A, B

Hemophila is a hereditary disorder with two main types: a (classic) and b (christmas disease).
The two types are clinically indistinguishable; the difference is in the coagulation factor (important for blood clotting). In type a, there is a deficiency in factor viii and in type b, there is a deficiency in factor ix.

In brief: Two main types: A, B

Hemophila is a hereditary disorder with two main types: a (classic) and b (christmas disease).
The two types are clinically indistinguishable; the difference is in the coagulation factor (important for blood clotting). In type a, there is a deficiency in factor viii and in type b, there is a deficiency in factor ix.
Amanda Xi
Amanda Xi
Answer assisted by Amanda Xi, Medical Student
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Dr. Antoanella Calame
Dermatology

In brief: X chromosome

There are several types of hemophilia.
All types can cause prolonged bleeding. If you have hemophilia and you have a cut, you'll bleed for a longer time than you would if your blood clotted normally. Small cuts usually aren't much of a problem. The greater health concern, particularly with hemophilia a and b, is deep internal bleeding and bleeding into joints.Hemophilia is a lifelong disease.

In brief: X chromosome

There are several types of hemophilia.
All types can cause prolonged bleeding. If you have hemophilia and you have a cut, you'll bleed for a longer time than you would if your blood clotted normally. Small cuts usually aren't much of a problem. The greater health concern, particularly with hemophilia a and b, is deep internal bleeding and bleeding into joints.Hemophilia is a lifelong disease.
Dr. Antoanella Calame
Dr. Antoanella Calame
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