Immune-Mediated Haemolytic Anaemia in Dogs: Welfare

Immune-mediated haemolytic anaemia (IMHA) is a severe and potentially fatal condition in which the immune system destroys the dog's own red blood cells.

Key Facts

IMHA carries a mortality rate of 30-50% even with intensive treatment
Cocker Spaniels, Springer Spaniels and Poodles are most commonly affected
Signs: acute weakness, pale or jaundiced gums, collapse, rapid breathing
Blood transfusions and immunosuppressive therapy are mainstays of treatment
Relapses occur in 15-30% of cases — lifelong monitoring required

Welfare Considerations

IMHA causes acute, life-threatening illness with severe welfare implications — profound anaemia causes weakness, breathlessness and distress. Hospitalisation for intensive monitoring and treatment is essential but itself stressful. Dogs that survive the acute phase require long-term immunosuppression with associated side effects. The condition is unpredictable and relapses can occur despite remission. Early presentation to a veterinary emergency service is critical to survival.

What You Can Do

Recognise signs of severe anaemia in dogs: collapse, pale gums, rapid breathing
Seek emergency veterinary care immediately if IMHA signs are present
Follow immunosuppressive treatment protocols carefully throughout tapering phase
Monitor for relapse signs during medication tapering — report promptly
Support research into IMHA triggers and improved treatment protocols