Other factors including pregnancy and altitudesalso affect haemoglobin levels and must be taken into account whenconsidering whether an individual is anaemic.Classification:I. Aetiological: - Deficiency anaemia e.g. Iron t - Vit 812 t - Folic acid I. - Aplastic anaemia. - Haemolytic anaemia. - Haemorrhagic anaemia.II. Morphological: (according to blood indicies) - Microcytic hypochromic: ??? Iron