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Living with Acquired von willebrand syndrome

A bleeding disorder that develops in adults due to other conditions or medicines, not an inherited gene change.

Understanding Acquired von willebrand syndrome

Acquired von Willebrand syndrome (AVWS) is a bleeding disorder that is not caused by a change in the VWF gene.

It can result from lymphoproliferative disorders, autoimmune disorders (such as lupus, scleroderma, or antiphospholipid antibody syndrome), heart conditions such as aortic valve narrowing, high platelet counts, and certain drugs. GARD lists onset as adult.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Low von Willebrand factor activity
  • Low factor VIII activity
  • Longer time for blood to clot
  • Heavy menstrual bleeding
  • Bleeding under the skin
  • Bleeding within a joint

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include blood and bone marrow specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    Hemophilia Federation of America may keep lists of experts for this condition.

Care & treatment

Care team
Blood and bone marrow specialists (hematologists)
Expert care
Expert lists: Hemophilia Federation of America
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Hemophilia Federation of America and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Which underlying condition or medicine may be causing this?
What should I do if I have heavy or unusual bleeding?
Which specialist, such as a hematologist, should follow me?

Quick facts

Symptoms usually startAdult

It is not caused by a VWF gene change. It can result from conditions such as lymphoproliferative or autoimmune disorders, heart conditions, high platelet counts, and certain drugs.

Blood

Also known as: acquired von willebrand disease; acquired von willebrand disease (hereditary or acquired); acquired von willebrand's disease; avws

Patient organizations

Source: NIH GARD · Acquired von willebrand syndromeGARD ID 5573 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Acquired von willebrand syndrome.

Explore the Acquired von willebrand syndrome blog

Explore research for Acquired von willebrand syndrome

Explore actively recruiting Acquired von willebrand syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Acquired von willebrand syndrome with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
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  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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