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Living with Platelet-type bleeding disorder 11

An inherited bleeding disorder, also called glycoprotein VI deficiency, in which blood clots do not form normally.

Understanding Platelet-type bleeding disorder 11

Platelet-type bleeding disorder 11, also called glycoprotein VI deficiency, is an inherited bleeding disorder.

People cannot form blood clots normally, so they have a higher risk of nosebleeds and may bleed heavily or for a long time after minor injury or surgery. Some have bleeding under the skin that causes discoloration (ecchymosis). Women often have heavy or long menstrual periods.

Signs & symptoms

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

  • Nosebleeds
  • Easy bruising
  • Bleeding under the skin (ecchymosis)
  • Heavy or long menstrual periods
  • Longer bleeding time

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 GP6 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
Should we have genetic testing for GP6, and should relatives be tested?
How should bleeding be managed during surgery or dental work?
What can help with heavy menstrual periods?

Quick facts

InheritanceAutosomal Recessive
GenesGP6

Changes in the GP6 gene cause this condition. It is autosomal recessive, meaning a child inherits a changed copy of the gene from each parent.

GeneticBlood

Also known as: bdplt11; bleeding diathesis due to glycoprotein vi deficiency; bleeding disorder due to glycoprotein vi deficiency; bleeding disorder platelet-type 11; glycoprotein vi deficiency; gp vi deficiency

Patient organizations

Source: NIH GARD · Platelet-type bleeding disorder 11GARD ID 13293 · 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 Platelet-type bleeding disorder 11.

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