Is Von Willebrand Disease hereditary?

Von Willebrand Disease is a hereditary bleeding disorder caused by a genetic mutation that affects the production or function of the von Willebrand factor protein. Because it is primarily inherited through an autosomal pattern, individuals with Von Willebrand Disease typically receive the altered gene from one or both parents, though the severity and type can vary significantly within families.

Is Von Willebrand Disease hereditary or genetic?

Von Willebrand Disease is both genetic and hereditary. It is genetic because it is caused by mutations in the VWF gene located on chromosome 12, which provides instructions for making the von Willebrand factor protein. It is hereditary because these mutations are passed down from parents to their children through the germline. While most cases are inherited, it is important to note that spontaneous (de novo) mutations can occur, though they are less common than familial transmission.

What is the inheritance pattern of Von Willebrand Disease?

The inheritance pattern of Von Willebrand Disease depends on the specific type of the condition:

• Type 1 and Type 2: These typically follow an autosomal dominant inheritance pattern. This means an affected parent has a 50% chance of passing the altered gene to each child.


• Type 3: This is the most severe form and follows an autosomal recessive inheritance pattern. A child must inherit two copies of the altered gene (one from each carrier parent) to manifest the disease.

Is genetic testing available for Von Willebrand Disease?

Genetic testing is available and is used to identify the specific mutation within the VWF gene. However, clinical diagnosis often relies on blood tests that measure the level and activity of the von Willebrand factor protein. Genetic testing is particularly useful for:

1. Confirming the specific subtype of Von Willebrand Disease to guide personalized treatment plans.


2. Distinguishing between different types of the disease when blood assays provide ambiguous results.


3. Assisting family members in determining their carrier status or risk level.


4. Prenatal or preimplantation genetic diagnosis for families with a history of the severe Type 3 form.

What is the role of genetic counseling for families?

Genetic counseling is a vital resource for anyone living with or planning a family while affected by Von Willebrand Disease. A genetic counselor can help interpret complex family histories, explain the 50% risk associated with dominant forms, and discuss the implications for future pregnancies. For the 184 members of our DiseaseMaps community, counseling often provides clarity on how to communicate risks to relatives and how to manage the condition during pregnancy and childbirth, where bleeding risks may change.

Next steps

• Consult a hematologist or a specialized coagulation center to review your specific type of Von Willebrand Disease.


• Schedule an appointment with a certified genetic counselor to map your family history and understand recurrence risks.


• Connect with the 184 members of our DiseaseMaps community to share experiences and coping strategies for managing daily life with this condition.


• Request a formal genetic evaluation if you are planning a pregnancy and have a family history of bleeding disorders.

Medical disclaimer: This information is for educational purposes only and should not replace professional medical advice, diagnosis, or treatment from your healthcare provider.

References

• National Institutes of Health (NIH) - Genetic and Rare Diseases Information Center (GARD): Von Willebrand disease.


• Orphanet: Von Willebrand disease (ORPHA:900).


• Online Mendelian Inheritance in Man (OMIM): Von Willebrand Factor (VWF) gene entry.


• National Hemophilia Foundation: Information on Von Willebrand Disease inheritance and testing.