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Living with Sickle cell-beta-thalassemia

A type of sickle cell disease that affects the hemoglobin in red blood cells, causing anemia, infections and pain episodes.

Understanding Sickle cell-beta-thalassemia

Sickle cell-beta-thalassemia is an inherited type of sickle cell disease that affects hemoglobin, the protein in red blood cells that carries oxygen.

People have one gene change that makes red blood cells sickle-shaped and another that lowers hemoglobin production (beta thalassemia). The sickle-shaped cells break down early and can get stuck in blood vessels. Features may include anemia (low red blood cells), repeated infections and frequent pain episodes. They usually develop in early childhood and vary in severity with how much normal hemoglobin is made.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet. Based on its summary, features include:

  • Anemia (low red blood cells)
  • Repeated infections
  • Frequent episodes of pain
  • Sickle-shaped red blood cells

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. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    Cooley's Anemia Foundation and Sickle Cell Disease 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, Sickle Cell Disease 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 and other patient organizations
  • 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
Which form do I have, sickle beta zero or beta plus?
How can we lower the chance of infections and pain episodes?
How often should I see a blood specialist?

Quick facts

Symptoms usually startany time in life
InheritanceAutosomal Recessive

GARD says a person has a different change in each copy of the HBB gene. One causes sickling and the other is linked to beta thalassemia. It is inherited in an autosomal recessive pattern.

GeneticBlood

Also known as: double heterozygous for hb s and beta thalassemia; hb s-beta thalassemia; hbs-beta-thalassemia syndrome; hemoglobin s beta-thalassemia; hemoglobin s/beta thalassemia; s-beta thalassemia

Patient organizations

Source: NIH GARD · Sickle cell-beta-thalassemiaGARD ID 10333 · 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 Sickle cell-beta-thalassemia.

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