{Reference Type}: Case Reports {Title}: A Rare Case of Autoimmune Disorder as a Trigger for Atypical Hemolytic Uremic Syndrome. {Author}: Pasari A;Balwani M;Gurjar P;Sejpal K;Bawankule C;Tolani P;Dubey S;Kashiv P;Bhawane A;Malde S;Gupta S; {Journal}: Cureus {Volume}: 16 {Issue}: 1 {Year}: 2024 Jan 暂无{DOI}: 10.7759/cureus.53126 {Abstract}: Autoimmune diseases may act as a trigger for atypical hemolytic uremic syndrome (aHUS). Triggers for aHUS may include autoimmune diseases, infections, metabolic conditions, pregnancy, and transplants. aHUS-mediated injury to various organs, especially kidneys, can be life-threatening. Here, we present the case of a young female who had perinuclear antineutrophil cytoplasmic antibody (p-ANCA)-associated vasculitis and was diagnosed with aHUS. We consider underlying autoimmune p-ANCA-associated vasculitis as a trigger for aHUS in this case.