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What is factor V Leiden?

ANSWER

Factor V Leiden, also called FVL, is a disorder that keeps your blood from clotting like it should. It comes from your genes. That means you were born with a gene mutation that causes it. You can get it from one or both of your parents.

SOURCES:

American Society of Hematology: "Blood Clots."

CDC: "Venous Thromboembolism (Blood Clots)."

GeneFacts: "Factor V Leiden-associated Thrombosis."

Mayo Clinic: "Factor V Leiden."

National Blood Clot Alliance: "Factor V Leiden Resources."

National Human Genome Research Institute: "Learning About Factor V Leiden Thrombophilia."

NIH U.S. National Library of Medicine Genetics Home Reference: "factor V Leiden thrombophilia."

World Federation of Hemophilia: "What are rare clotting factor deficiencies?

Reviewed by Gabriela Pichardo on May 10, 2020

SOURCES:

American Society of Hematology: "Blood Clots."

CDC: "Venous Thromboembolism (Blood Clots)."

GeneFacts: "Factor V Leiden-associated Thrombosis."

Mayo Clinic: "Factor V Leiden."

National Blood Clot Alliance: "Factor V Leiden Resources."

National Human Genome Research Institute: "Learning About Factor V Leiden Thrombophilia."

NIH U.S. National Library of Medicine Genetics Home Reference: "factor V Leiden thrombophilia."

World Federation of Hemophilia: "What are rare clotting factor deficiencies?

Reviewed by Gabriela Pichardo on May 10, 2020

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What are the symptoms of factor V Leiden?

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