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What causes hemophilia A?

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Hemophilia A comes from your genes. You can inherit it from your parents. Or it can happen if a certain gene changes before you're born. This change is called a spontaneous mutation.

From: Hemophilia A WebMD Medical Reference

SOURCES:

KidsHealth: "Hemophilia."

Medscape: "Hemophilia A."

National Heart, Lung, and Blood Institute: "Hemophilia."

National Hemophilia Foundation: " "Hemophilia A," "Hemophilia A (Factor VIII Deficiency)."

Medscape: "Acquired Hemophilia." National Hemophilia Foundation: "Comprehensive Medical Care: HTCs." Mayo Clinic: "Hemophilia."

UpToDate: "Hemophilia A and B: Routine management including prophylaxis."

National Institutes of Health: "Hemophilia A."

The Haemophilia Society: "Extended half-life (EHL) factor VIII."

Reviewed by Neha Pathak on December 13, 2018

SOURCES:

KidsHealth: "Hemophilia."

Medscape: "Hemophilia A."

National Heart, Lung, and Blood Institute: "Hemophilia."

National Hemophilia Foundation: " "Hemophilia A," "Hemophilia A (Factor VIII Deficiency)."

Medscape: "Acquired Hemophilia." National Hemophilia Foundation: "Comprehensive Medical Care: HTCs." Mayo Clinic: "Hemophilia."

UpToDate: "Hemophilia A and B: Routine management including prophylaxis."

National Institutes of Health: "Hemophilia A."

The Haemophilia Society: "Extended half-life (EHL) factor VIII."

Reviewed by Neha Pathak on December 13, 2018

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