When kidney health
changes, oxygen
delivery can change too

Anaemia means your blood has fewer red blood cells or less haemoglobin (Hb) — the protein that carries oxygen.

In CKD, the kidneys may produce less erythropoietin (EPO) and the body may not use iron well, which can lead to fewer healthy red blood cells and less oxygen reaching your tissues.

This information is for education only and not a substitute for medical advice.
Always consult your doctor for diagnosis and treatment.

  1. Kidney with impaired function

    Kidney impaired function

  2. Reduced EPO production

    ↓ EPO productionfrom kidney

  3. Bone marrow producing fewer red blood cells

    Bone marrow makesfewer red blood cells

  4. Fewer red blood cells

    Fewer red bloodcells & haemoglobin

  5. Reduced oxygen delivery to tissues

    Reduced oxygendelivery to body tissues

CKD Anaemia reference: Badura, K., Janc, J., Wąsik, J., Gnitecki, S., Skwira, S., Młynarska, E., Rysz, J., & Franczyk, B. (2024). Anemia of Chronic Kidney Disease—A Narrative Review of Its Pathophysiology, Diagnosis, and Management. Biomedicines, 12(6), 1191. https://doi.org/10.3390/biomedicines12061191

Why CKD can cause anaemia

iNot every anaemia is caused by CKD. Other conditions can cause anaemia too.
Only your doctor can find the exact cause.

  1. 1

    Reduced erythropoietin production

    Kidney releasing less erythropoietin

    Damaged kidneys may produce less erythropoietin (EPO), a hormone that tells the bone marrow to make red blood cells.

  2. 2

    Inflammation & higher hepcidin

    Shield representing inflammation and hepcidin

    Inflammation can raise hepcidin levels. Hepcidin blocks the release and absorption of iron needed to make red blood cells.

  3. 3

    Functional iron deficiency & reduced absorption

    Gut and test tube representing iron absorption

    Iron may be present in the body but is not available for red blood cell production. Absorption of iron from food may also be reduced.

  4. 4

    Dialysis-related blood loss & shortened red-cell survival

    Blood drop with red blood cells

    Blood can be lost during dialysis. Red blood cells may also have a shorter lifespan in CKD.

Sources: DREAM-ND Phase III trial, DREAM-D Phase III trial, South Asia HIF-PHI guideline, Systematic review & meta-analysisView source details

CKD Anaemia symptoms reference: Tonelli M, Berns J, Bozkurt B, et al. KDIGO 2026 Clinical Practice Guideline for the Management of Anemia in Chronic Kidney Disease (CKD). Kidney International, 109, S1–S99.

What anaemia may feel like

  • Tired personFatigue

    Feeling unusually tired or lacking energy.

  • Person struggling to exerciseReduced exercise tolerance

    Getting tired or short of breath with activity.

  • LungsShortness of breath

    Breathlessness during daily tasks or even at rest.

  • BrainDifficulty concentrating

    Trouble focusing or remembering things.

  • Person with everyday tasksReduced ability to do everyday tasks

    Harder to perform routine activities.

iThese symptoms can be caused by many conditions. They are not diagnostic. Please consult your doctor.

Why it matters

  • Quality of life & physical function

    Anaemia can reduce energy, physical function and overall quality of life.

  • Cardiovascular workload & risk

    Anaemia can increase the workload on the heart and is associated with higher cardiovascular risk.

  • Hospitalisation & morbidity

    Anaemia is linked with more hospital visits and other health complications.

  • Possible relationship with CKD progression

    Severe or presistent anaemia may be associated with faster decline in kidney function.

iThese associations observed in studies. Treating anaemia may help, but outcomes depend on many factors.Source: South Asia HIF-PHI guidelineSee guideline context

How clinicians assess CKD anaemia

  1. 1Clipboard checklist
    Symptoms & history

    Understanding your symptoms, medical history and medications.

  2. 2Blood sample tubes
    Haemoglobin / CBC

    Blood tests to measure haemoglobin and other blood counts.

  3. 3Iron study report
    Iron status

    Checking iron stores (ferritin) and availability (transferrin saturation) when needed.

  4. 4Magnifying glass over cells
    Rule out other causes

    Excluding blood loss, nutritional deficiency, infection, malignancy or other causes.

  5. 5Calendar with a tick
    Ongoing monitoring

    Regular checks to see how you are responding to treatment.

Two care journeys

Anaemia care is different depending on whether you are on dialysis.

Living with CKD,
not on dialysis

Focus is on slowing kidney decline, identifying and treating the cause of anaemia, and using medications and iron when needed.

Learn more about non-dialysis care

Receiving dialysis

Anaemia management also considers dialysis factors like blood loss during treatment and removal of toxins.

Learn more about dialysis care

Treatment landscape

Your doctor will decide the best approach for you based on your health, test results and preferences.

  • Iron replacement (oral or IV) when iron is low
  • Erythropoiesis-stimulating agents (injectable)
  • Oral HIF-PH inhibitors (e.g., desidustat)
  • Transfusion in selected / rescue situations

Treatment choice is individual and clinician-led.
Benefits and risks should be discussed with your doctor.

Source: Systematic review & meta-analysis of HIF-PHIs in CKD anaemiaReview the systematic evidence

Take charge of your health

Download a helpful checklist of questions to ask your doctor
about CKD anaemia.

Download questions to ask

Want to understand the science?

Explore how the hypoxia-inducible factor (HIF) pathway
helps in making red blood cells.

Explore the HIF pathway

Prescribing information for Oxemia® (Desidustat)
Please read the approved indication and important safety information.

View Oxemia® prescribing information (PI)