GSTM1 and anemia (phenotype): It is important to note Hb and haematocrit values before blood transfusion and correlate the patient's clinical status [18]. Misuse of RCC may also be prevented in patients whose Hb or haematocrit may be improved through other means such as diet, haematin, etc. In maternity and medical departments, patients suffering from severe anaemia can be prevented by primary health centre (PHC) visits and early treatments in the early phase of anaemia.