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Living with Hemoglobin E/beta thalassemia disease

An inherited blood condition ranging from mild to severe anemia, found at a variety of ages.

Understanding Hemoglobin E/beta thalassemia disease

Hemoglobin E/beta thalassemia disease is an inherited blood condition that ranges from mild to severe.

It is a form of beta-thalassemia. Some people have a mild form, like beta-thalassemia intermedia. Others have a form that looks like beta-thalassemia major. It can show up at a variety of ages.

Signs & symptoms

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

  • Low red blood cell or hemoglobin count (anemia)
  • Abnormal hemoglobin
  • Decreased immune function (immunodeficiency)

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

  4. Connect with expert centers

    Cooley's Anemia Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Blood and bone marrow specialists (hematologists); Genetic specialists (geneticists)
Expert care
Expert lists: Cooley's Anemia Foundation
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 Cooley's Anemia 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
How mild or severe is my form, and how will it be monitored?
Which specialist should manage my blood condition?
Could genetic testing for HBB help my family?

Quick facts

Symptoms usually starta variety of ages
InheritanceAutosomal Recessive
GenesHBB

It is caused by changes in the HBB gene. It is autosomal recessive, so a child inherits a changed copy of the gene from each parent.

GeneticBlood

Also known as: beta e thalassemia; double heterozygous for hb e and beta thalassemia; e-beta-thalassemia; hbe-beta-thalassemia syndrome; hemoglobin e-beta-thalassemia syndrome

Patient organizations

Source: NIH GARD · Hemoglobin E/beta thalassemia diseaseGARD ID 20609 · 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 Hemoglobin E/beta thalassemia disease.

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