MICROCYTIC HYPOCHROMIC ANAEMIA
Defective iron metabolism:
    Iron-deficiency anaemia
    Anaemia of chronic disease
Disorder of haemoglobin synthesis:
   Thalassaemia (trait, intermedia, major)  
   Hb E syndrome
   Hb C syndrome
   Unstable haemoglobins
Defect in Haem synthesis:
   Sideroblastic anaemia
   Lead poisoning.
Aluminium toxicity during dialysis.