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Living with Thrombocytopenia with congenital dyserythropoietic anemia

A rare blood condition, almost always in males, with low platelets, bleeding, and sometimes anemia.

Understanding Thrombocytopenia with congenital dyserythropoietic anemia

Thrombocytopenia with congenital dyserythropoietic anemia is a rare blood condition that causes a low platelet count with bleeding, with or without anemia.

The thrombocytopenia is moderate to severe, and the anemia, when present, can be mild to severe. It affects almost only males. It is noticed in the newborn period or infancy.

Signs & symptoms

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

  • Low platelet count with large platelets (macrothrombocytopenia)
  • Anemia from poor red blood cell production
  • Pale, small red blood cells (hypochromic anemia)
  • Red blood cells of different sizes
  • Bleeding
  • Undescended testes (cryptorchidism)

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 GATA1 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 Platelet Disorder Support Association
  • 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
Can genetic testing of the GATA1 gene confirm this diagnosis?
How often should my blood counts be checked?
Which specialists, such as a hematologist, should be on my care team?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceX-Linked
GenesGATA1

This condition is caused by changes in the GATA1 gene. It is X-linked, which means the gene is on the X chromosome.

GeneticBlood

Also known as: congenital dyserythropoietic anaemia with thombocytopenia; congenital dyserythropoietic anemia with thombocytopenia; x-linked congenital dyserythropoietic anaemia with thrombocytopenia; x-linked congenital dyserythropoietic anemia with thrombocytopenia; xdat

Patient organizations

Source: NIH GARD · Thrombocytopenia with congenital dyserythropoietic anemiaGARD ID 16676 · 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

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