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Living with Pseudo von Willebrand disease

A bleeding disorder with mild to moderate bleeding from skin and mucous membranes, caused by overactive platelets.

Understanding Pseudo von Willebrand disease

Pseudo von Willebrand disease is a bleeding disorder caused by platelets that react too strongly, leading to a low platelet count.

It causes mild to moderate bleeding from the skin and linings of the body, like the nose and mouth. Bleeding gets worse during pregnancy or after taking medicines that affect platelets. GARD lists onset in adulthood.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet. The summary describes these features:

  • Mild to moderate bleeding from the skin and body linings
  • More bleeding during pregnancy
  • More bleeding with medicines that affect platelets
  • Low platelet count (thrombocytopenia)

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 and genetic specialists.

  3. Consider genetic testing

    Changes in GP1BA are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

Care & treatment

Care team
Blood and bone marrow specialists (hematologists); Genetic specialists (geneticists)
Expert care
Ask about multidisciplinary care centers for rare conditions
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 National Bleeding Disorders Foundation
  • 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
Would genetic testing for the GP1BA gene help confirm the diagnosis?
Which medicines should I avoid?
How should pregnancy or surgery be planned?

Quick facts

Symptoms usually startAdult
InheritanceAutosomal Dominant
GenesGP1BA

This condition is caused by changes in the GP1BA gene. It is autosomal dominant, meaning one changed copy of the gene is enough.

GeneticBlood

Also known as: bdplt3; bleeding disorder, platelet-type, 3; platelet type pseudo-von willebrand disease; platelet type-von willebrand disease; platelet-type von willebrand disease; pseudo-von willebrand disease

Patient organizations

Source: NIH GARD · Pseudo von Willebrand diseaseGARD ID 8312 · 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 Pseudo von Willebrand disease.

Explore the Pseudo von Willebrand disease blog

Explore research for Pseudo von Willebrand disease

Explore actively recruiting Pseudo von Willebrand disease studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Pseudo von Willebrand disease with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • 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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