A 64 years old woman with complains of general weakness and malaise, anemia (Hb: 8 gr/dl) and elevated inflammatory markers (erythrocyte sedimentation rate and C-reactive protein, 115 mm/h and 120 mg/l, respectively) was referred to a University affiliated subspecialty clinic in Sari, Mazandaran, Iran. Here, GSTM1 is linked to anemia (phenotype).