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Living with Autoimmune hemolytic anemia

A condition in which the immune system attacks red blood cells, leading to anemia.

Understanding Autoimmune hemolytic anemia

Autoimmune hemolytic anemia (AIHA) is a condition in which the immune system makes antibodies that attack red blood cells.

This lowers the number of red blood cells and causes hemolytic anemia. AIHA can have no known cause (idiopathic) or result from an underlying disease or a medication. It can develop slowly or suddenly, and at any age.

Signs & symptoms

GARD says symptoms may include:

  • Unusual weakness and fatigue
  • Fast heartbeat
  • Trouble breathing
  • Yellowing of the skin and eyes (jaundice)
  • Dark urine
  • Enlarged spleen

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.

  3. Ask which tests can help

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

  4. Connect with expert centers

    Autoimmune Association, Cold Agglutinin Disease Foundation and Global Autoimmune Institute may keep lists of experts for this condition.

Care & treatment

Care team
Blood and bone marrow specialists (hematologists)
Expert care
Expert lists: Autoimmune Association, Cold Agglutinin Disease Foundation, Global Autoimmune Institute
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 Autoimmune Association 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
Is my AIHA primary or linked to another condition or medicine?
Which treatments calm the immune attack?
What symptoms should I report right away?

Quick facts

Symptoms usually startany time in life

GARD says AIHA occurs when the immune system makes antibodies that attack red blood cells. It can be primary (no known cause) or result from an underlying disease or medication.

Blood

Also known as: acquired autoimmune hemolytic anemia; aha; aiha; anemia, hemolytic, acquired autoimmune; autoimmune haemolytic anaemia; autoimmune haemolytic anemia

Patient organizations

Source: NIH GARD · Autoimmune hemolytic anemiaGARD ID 5870 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

Explore research for Autoimmune hemolytic anemia

Explore actively recruiting Autoimmune hemolytic anemia studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Autoimmune hemolytic anemia with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • 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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