Anaemia can also result from medical conditions that affect haemoglobin levels.
For example, sometimes parasite infections can cause anaemia.
Parasites are small organisms that live in other organisms.
They take nutrients from the other organism’s body.
A parasite living in a person takes nutrients away from the person, especially the nutrient iron.
This can cause anaemia because the body does not have enough nutrients to work correctly.
Chronic, continuing diseases can also cause anaemia.
Infectious diseases like HIV, malaria and tuberculosis can make a person’s body weak.
They also take important nutrients away from the body.
Sometimes a person will not feel like eating.
So, he is not taking nutrients into his body.
Usually, treating the disease will help to treat the symptoms of anaemia.
Some causes of anaemia are only experienced in women.
Every month, a healthy fertile woman loses an amount of blood in menstruation.
Losing this blood is normal.
But, a woman must put more nutrients into her body to take the place of the nutrients she has lost.
Particular conditions during pregnancy can also lead to anaemia.
During pregnancy, a woman’s body may not expel liquids like it should.
This means that there is too much liquid in the blood.
And there are not enough red blood cells to transport nutrients and oxygen.
Pregnant women may also lose too much blood during childbirth.
Losing blood leads to loss of iron.
If the woman does not receive treatment she may develop anaemia.