PNH caused by the mutation in the phosphatidylinositol glycan class A (PIG‐A) gene, manifesting clinically as complement‐mediated hemolysis due to the deficiency of glycosylphosphatidylinositol‐anchored proteins (GPI‐Aps) on blood cells [1]. This evidence concerns the gene PIGA and paroxysmal nocturnal hemoglobinuria.