Iron deficiency anaemia: why the cause matters

Understanding iron deficiency

Iron helps the body make haemoglobin, which allows red blood cells to carry oxygen. Too little iron can impair red blood cell production and lead to anaemia. Possible symptoms include tiredness, pale skin, breathlessness and noticeable heartbeats. Some people have few obvious symptoms.

Finding the cause

Blood loss, including heavy periods, insufficient dietary iron or difficulty absorbing iron may contribute. Other sources of bleeding can require investigation. Symptoms alone cannot confirm iron deficiency. A clinician uses blood tests and questions about diet, periods, digestive symptoms and medicines to decide what further assessment is appropriate.

Treatment and follow-up

Care may include dietary changes and prescribed iron with checks on response. Intravenous iron may be considered when tablets are unsuitable or ineffective. Do not take iron simply because you feel tired, or assume that feeling better removes the need to investigate the cause. Report side effects rather than changing treatment independently. Store iron products safely away from children because accidental swallowing can be dangerous. Chest pain, severe breathlessness or fainting requires emergency attention, particularly when accompanied by bleeding.

Safety note

This is general educational information, not a diagnosis or an individual treatment plan, and it does not replace advice from a qualified healthcare professional. Needs vary; seek urgent care for warning signs rather than delaying for online advice.