Hemoglobin level lower 10g/dl was evident in 2 patients (40%) In cancer patient’s low Hb level has been reported in range of 15-59.3% of CML patients (Jacobs et al., 2018; Jabbour et al., 2017). The gene discussed is GSTM1; the disease is chronic myelogenous leukemia, BCR-ABL1 positive.