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Living with Storage pool disease of platelets

A group of blood conditions in which platelets don't store or release what they need, leading to easy bleeding.

Understanding Storage pool disease of platelets

Storage pool disease of platelets (alpha delta granule deficiency) is a group of conditions caused by problems with platelet granules.

Granules are tiny storage sacs in platelets that release substances to help stop bleeding. In these conditions, granules are missing, too few, or can't release their contents. The conditions may be genetic or acquired (not genetic).

Signs & symptoms

Symptoms vary from person to person. GARD describes these:

  • Frequent nosebleeds
  • Heavy or long menstrual periods
  • Easy bruising
  • Repeated anemia
  • Bleeding after surgery or dental work
  • Bleeding after childbirth

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 GFI1B 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
What precautions should I take before surgery or dental work?
Which tests confirm a platelet storage problem?
Would GFI1B gene testing help our family?

Quick facts

InheritanceAutosomal Dominant, Autosomal Recessive
GenesGFI1B

Changes in the GFI1B gene can cause it. It can be inherited in an autosomal dominant or recessive pattern, and some cases are acquired rather than genetic.

GeneticBlood

Also known as: alpha delta granule deficiency; alpha dense granule deficiency; combined alpha-delta platelet storage pool deficiency; delta storage pool disease; dense body defect; dense body deficiency

Patient organizations

Source: NIH GARD · Storage pool disease of plateletsGARD ID 5034 · 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 Storage pool disease of platelets.

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Explore research for Storage pool disease of platelets

Explore actively recruiting Storage pool disease of platelets studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Storage pool disease of platelets 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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