Hemoglobinopathies are the world’s most widespread genetic diseases.1 The high frequency of hemoglobinopathies globally is of great concern to public health managers of various nations.2 Among the hemoglobinopathies, sickle cell disease is a genetic disorder in which the beta-chain of the human hemoglobin (Hb) gene is mutated, leading to an abnormal Hb. Here, GSTM1 is linked to hemoglobinopathy.