The median number of white blood cell count, Hb count, and PLT count at the time of AIHA diagnosis was 3.13 G/L (range, 1.32‐7.23), 57.5 g/L (range, 34‐75), and 133 G/L (range, 11‐187), respectively. Here, GSTM1 is linked to autoimmune hemolytic anemia.