Overview
Anemia means the blood cannot carry as much oxygen as the body needs, often because there are too few red blood cells or too little haemoglobin. It can cause tiredness and breathlessness. This is general educational information, not medical advice.
Symptoms
- tiredness and lack of energy
- shortness of breath
- pale skin
- fast or irregular heartbeat
Causes
- too little iron, vitamin B12, or folate
- blood loss, including from heavy periods
- some long-term conditions affecting red-cell production
Risk factors
- diets low in iron or certain vitamins
- pregnancy
- chronic conditions or ongoing blood loss
Prevention
- a balanced diet with iron- and vitamin-rich foods
- following clinician guidance for known risk factors
Emergency warning signs
- chest pain
- severe shortness of breath
- fainting
Evaluation & tests
Educational note: qualified clinicians assess anemia with a full blood count and related tests. This library does not diagnose.
Treatment education
Educational overview: care depends on the cause and is individualized by clinicians. This library does not prescribe.
Self-care
General education: eating iron- and vitamin-rich foods and attending review appointments can support red-cell health when advised by a clinician.
When to seek care
Seek professional care for ongoing tiredness, breathlessness, or paleness.