Warm autoimmune haemolytic anaemia: Clinical considerations

Warm autoimmune haemolytic anaemia (wAIHA) is an acquired autoimmune disorder caused by autoantibodies-primarily immunoglobulin G (IgG)-that bind to red blood cells and trigger haemolysis. It can be primary or secondary to associated conditions. This nutshell review summarizes pathophysiology, diagnostic workup, prognosis and treatment options.