Which factor is NOT a cause of anaemia?

High blood pressure is not considered a direct cause of anemia. Anemia primarily arises from factors that affect the production of red blood cells, lead to their destruction, or cause loss of blood. Nutritional deficiencies, such as a lack of iron, vitamin B12, or folate, directly impact red blood cell production. Chronic diseases can hinder the body’s ability to produce red blood cells by affecting the bone marrow or causing inflammation, while infections can lead to anemia as the body responds to illness, old red blood cells may break down more rapidly, or bone marrow function may be suppressed. High blood pressure, however, typically does not interfere with these processes in a way that would directly result in anemia.