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My Hb is low but ferritin came high. Doctor said iron tablets won't help. I'm confused, how can both happen?

An AskHer answer: what is known, what depends on you, and what only a clinician can decide.

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Written with AI assistance — not yet reviewed by a person Version 1 · Not yet reviewed by a person · English

The short explanation

It is confusing, but this combination is well known. Ferritin reflects iron stores, but it also rises during inflammation, infection, liver problems and some long-term illnesses. So a high ferritin does not always mean you have plenty of usable iron. When haemoglobin is low and ferritin is high, doctors think of causes such as anaemia linked to chronic inflammation, for example from rheumatoid arthritis or kidney disease, low B12 or folate, thyroid problems, liver conditions, or inherited conditions. Iron tablets may not help in these situations and can sometimes add to iron overload, which is why your doctor is looking for the real cause.

What depends on your situation

The parts of this that change from woman to woman. Uncertainty is stated, not hidden.

  • Other tests such as transferrin saturation, CRP, kidney and liver function, B12 and folate help clarify the picture.
  • Any recent fever or infection can temporarily raise ferritin, so a repeat test may be suggested.
  • Mention any joint pain, swelling, weight loss, or long-term conditions to your doctor.

What this answer cannot determine

The boundary of online education. These need a clinician who can see you.

  • This cannot tell you why your results look this way. Your doctor will need further tests and your full history to explain them.

Questions for your clinician

Take these with you. You can add any of them to an appointment card.

  1. What are the likely reasons for low Hb with high ferritin in my case?
  2. Which further tests do you suggest?
  3. Could inflammation or an infection be affecting the result?
  4. Do I need to see a specialist?

When to seek help

Clinician-approved guidance for this topic. When in doubt, being seen is never the wrong choice.

Book an appointment soon

  • See a doctor within a few days if you have fever, weight loss, severe tiredness or breathlessness.

Raise it at a routine appointment

  • Book a routine follow-up to complete the further tests your doctor suggests.

Sources

The evidence this explanation is built on.

  1. Anemia MedlinePlus (US National Library of Medicine)
  2. Iron deficiency anaemia NHS
  3. Hemoglobin test MedlinePlus (US National Library of Medicine)

Who wrote and reviewed this

Every AskHer answer names its author. A clinically reviewed answer also names the clinician who signed it off — if no clinician is named below, it has not been clinically reviewed.

Author
AskHer Editorial (AI-assisted draft) AskHer's editorial team — not an individual clinician Works in English, தமிழ், हिन्दी
Clinical reviewer
Nobody yet No clinician has signed this answer off, and no person on the editorial team has read it yet. That is what the “Written with AI assistance” label means. It is queued for an editor to read, and then for a clinician who works in this area. The sources it was drafted against are listed above.
Review status
Written with AI assistance — not yet reviewed by a person
Last reviewed
Not yet reviewed by a person
Version
1

Correction history

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No corrections have been made since this answer was first published.

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