How common is fatigue in anaemia?

Anaemia refers to reduced haemoglobin or red blood cells, which can limit oxygen delivery around the body. The result may be reduced stamina, tiredness during ordinary activities, shortness of breath on exertion, dizziness, headaches, or a racing heartbeat. Symptoms can build gradually, so people sometimes adapt by doing less before they recognise a change. The cause of anaemia matters because it guides the right treatment.

Make a routine appointment for ongoing fatigue, particularly if it is new or limiting daily life. A clinician may ask about diet, menstrual bleeding, pregnancy, bowel symptoms, recent illness, family history, and medicines, then decide whether a blood test is needed. Do not start iron supplements just because you feel tired unless a clinician advises it; iron is not appropriate for every type of anaemia. Keep a note of symptoms and any bleeding you have noticed.

Get urgent help for chest pain, severe breathlessness at rest, fainting, new confusion, black or bloody stools, vomiting blood, or heavy bleeding that does not settle. Contact a clinician promptly if tiredness is rapidly worsening, your heart feels persistently fast or irregular, or you are pregnant and feel unwell. These symptoms need assessment regardless of whether anaemia has already been diagnosed.

Ask what type of anaemia is suspected, whether any tests are needed to look for the cause, and when your symptoms should be reviewed. Discuss your food intake, menstrual pattern, pregnancy status, gut symptoms, and all medicines, including over-the-counter pain relief.