When to worry about dizziness with iron deficiency anaemia

Iron is needed to make haemoglobin, which carries oxygen in red blood cells. When iron deficiency anaemia develops, reduced oxygen delivery can contribute to lightheadedness, tiredness, breathlessness on exertion, headache, paleness, or a racing heartbeat. Dizziness may have another cause, and the underlying reason for iron deficiency also needs attention.

Sit or lie down when dizzy, rise slowly, and avoid driving until your balance and alertness return. Keep a record of episodes, bleeding, menstrual flow, diet, breathlessness, palpitations, and prescribed treatments. Take iron only as directed, because the right preparation and dose depend on the assessment. Arrange a review if symptoms persist or affect work, walking, or exercise.

Seek emergency help for fainting, chest pain, severe breathlessness at rest, new confusion, blue lips, heavy ongoing bleeding, or a very fast or irregular heartbeat with weakness. Arrange prompt assessment for black stools, vomiting blood, rapidly worsening fatigue, or dizziness that is new and intense.

What tests can confirm iron deficiency and anaemia? Could bleeding, diet, absorption, or another illness explain it? How should I take treatment, and when should symptoms be reassessed?