Red Blood Cells and Common Causes of Iron Deficiency Anaemia

This medical illustration shows red blood cells, emphasising their role in transporting oxygen and how iron deficiency impacts their function. Iron deficiency anaemia occurs when the body lacks sufficient iron to produce adequate haemoglobin, the protein in red blood cells responsible for carrying oxygen. Common causes include poor dietary intake of iron, blood loss (from menstruation, ulcers, or injury), malabsorption conditions like coeliac disease, and increased needs during pregnancy. This image is a helpful visual tool to explain how reduced red blood cell quality and quantity lead to the symptoms of anaemia.