
Impaired kidney function reduces EPO production



Anaemia means you have fewer healthy red blood cells or less haemoglobin — the protein in red blood cells that carries oxygen.
When kidney function declines, the kidneys make less erythropoietin (EPO) — a hormone that signals your bone marrow to make red blood cells. Less EPO can lead to fewer red blood cells and lower oxygen delivery to tissues.
This page is for education only and not a substitute for medical advice.
The oxygen delivery pathway

Impaired kidney function reduces EPO production

Less EPO signal is sent to bone marrow

Reduced stimulation of red blood cell production

Fewer red blood cells are produced

Less oxygen reaches body tissues
Not every anaemia is caused by CKD. Many other conditions can cause low haemoglobin. Diagnosis and treatment decisions should be made by a clinician.

Damaged kidneys produce less EPO, leading to reduced stimulation of red blood cell production.
Source: DREAM-ND Phase III
Inflammation increases hepcidin, which reduces iron release from stores and limits iron availability.

Lower iron absorption and mobilisation can limit the iron available for red blood cell production.

Blood loss during dialysis and shorter red-cell survival can contribute to anaemia in people on dialysis.
Source: DREAM-D Phase III
Feeling unusually tired or lacking energy.

Getting tired more easily or needing to rest.

Breathlessness with activity or at rest.

Trouble focusing, “brain fog” or memory problems.

Finding day-to-day tasks harder to complete.
Symptoms can be caused by many conditions and are not diagnostic. Talk to your doctor.

Your doctor will ask about how you feel, medical history and treatments.

Haemoglobin (Hb) and complete blood count to confirm anaemia.

Iron tests such as ferritin and transferrin saturation to assess iron availability.

Rule out blood loss, nutritional deficiencies, infection, malignancy or other conditions.

Regular follow-up to monitor response and adjust the plan.
Your clinician will interpret results in context and not as diagnostic alone.

Kidneys still filter blood but less effectively. Anaemia management focuses on preserving kidney function, treating causes, and maintaining iron and haemoglobin levels.
Learn about non-dialysis care Source: DREAM-ND Phase III
Dialysis can contribute to anaemia through blood loss and shortened red-cell survival. Management is tailored to dialysis frequency and individual needs.
Learn about dialysis care Source: DREAM-D Phase IIIDownload a list of questions to help you have an informed conversation with your doctor.
Download questionsExplore the HIF pathway and mechanisms relevant to CKD anaemia.
Explore the HIF pathway