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Frequently asked questions

Will the blood test hurt?

What happens if I have symptoms but my blood test results come back

How can I reduce the chances of getting ID/IDA again?

If I have had ID/IDA once, am I more likely to have it again in the future?

Can I donate blood if I have ID/IDA?

Can donating blood affect iron levels?

Does ID/IDA run in families?

What is the difference between oral iron and intravenous iron?

Do iron treatments cause side effects?

What happens if ID/IDA is not treated?


  1. NHS Inform. Iron deficiency anaemia. Available at: Accessed December 2021.
  2. Mayo Clinic. Iron deficiency anemia. Available at: Accessed December 2021.
  3. Give blood. Haemoglobin and iron. Available at: Accessed December 2021.
  4. NHS. Thalassaemia. Available at: Accessed December 2021.
  5. De Falco L, et al. Haematologica 2013;98(6):845–853.
  6. Goddard AF, et al. Gut 2011;60(10):1309–1316
  7. Gasche C, et al. Inflamm Bowel Dis 2015;21(3):579–588.