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Living with 6-phosphogluconate dehydrogenase deficiency

A rare inherited blood condition that causes mild, long-term anemia with occasional yellowing of the skin.

Understanding 6-phosphogluconate dehydrogenase deficiency

6-phosphogluconate dehydrogenase deficiency is a rare inherited blood condition with low enzyme activity in red blood cells.

It is a type of chronic hemolytic anemia, where red blood cells break down faster than normal. The anemia is well compensated, which means the body copes. There can also be short periods of faster red cell breakdown with jaundice.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet. The summary describes anemia and short periods of jaundice.

  • Long-term mild anemia
  • Short periods of red cell breakdown
  • Yellowing of skin and eyes (jaundice)

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.

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 rare disease patient organizations for support
  • 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
When should I seek care for jaundice or fast red cell breakdown?
How often should my blood counts be checked?
Is genetic testing helpful for my family?

Quick facts

GARD says changes in genes (also called variants) cause this condition. The summary describes low enzyme activity in red blood cells.

GeneticBlood

Also known as: 6pgd deficiency; pgdd

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · 6-phosphogluconate dehydrogenase deficiencyGARD ID 16897 · 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 6-phosphogluconate dehydrogenase deficiency.

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