Anaemia is a condition in which there is not enough haemoglobin to carry oxygen in the blood. The haemoglobin is the red pigment in the red blood cells. Therefore Anaemia occurs when the number of red blood cells in the blood is reduced due to their decreased production or increased destruction.
Anaemia can also be due to abnormal formation of haemoglobin and red blood cells that makes them less stable and more prone to destruction.
The common types of Anaemia are:
- Anaemia associated with bone marrow disease such as leukaemia
- Anaemia of chronic disease which can be caused by chronic inflammatory diseases that affect red blood cells production, such as cancer, kidney failure and rheumatoid arthritis
- Aplastic Anaemia caused by the reduced ability of the bone marrow to produce red blood cells, platelets and white blood cells
- Haemolytic Anaemia which occurs when red blood cells are destroyed
- Iron Deficiency Anaemia caused by lack of iron in the body (most common type in Sinagpore)
- Sickle Cell Anaemia which is an inherited condition characterised by red blood cells that assume an abnormal crescent shape
- Vitamin B12 Folate Deficiency Anaemia