Iron Deficiency Anaemia: Symptoms, Causes, and Treatment

Iron deficiency anaemia happens when your body doesn’t have enough iron to make haemoglobin, which carries oxygen in your blood. Common symptoms include fatigue, pale skin, and shortness of breath. It can result from blood loss, poor iron absorption, or inadequate dietary iron. Treatment typically involves iron supplements and dietary changes. If you suspect anaemia, consult a doctor for proper diagnosis and management.

In plain words

Iron deficiency anaemia happens when your body doesn't have enough iron to make healthy red blood cells. These cells carry oxygen through your body. Without enough iron, you can feel tired, weak, or out of breath. It is the most common type of anaemia. Some people are at higher risk, like women with heavy periods, pregnant women, young children, and vegetarians. It can be caused by blood loss, not eating enough iron-rich foods, or problems absorbing iron. Doctors diagnose it with blood tests. Treatment usually includes iron supplements and eating more iron-rich foods. See a doctor if you think you might have it.

What is Iron Deficiency Anaemia: Symptoms, Causes, and Treatment?

Iron deficiency anaemia happens when your body doesn’t have enough iron to make haemoglobin, which carries oxygen in your blood. Common symptoms include fatigue, pale skin, and shortness of breath. It can result from blood loss, poor iron absorption, or inadequate dietary iron. Treatment typically involves iron supplements and dietary changes. If you suspect anaemia, consult a doctor for proper diagnosis and management.

Symptoms

Early symptoms

  • Fatigue: Feeling unusually tired or weak even after resting. This occurs because your body isn’t getting enough oxygen. (2) (1)
  • Pale skin: Skin, especially inside the lower eyelids or nails, may appear paler than usual due to reduced haemoglobin levels. (2)
  • Shortness of breath: Becoming winded easily during activities that didn’t previously cause breathing problems. (2)
  • Dizziness: Feeling lightheaded or dizzy, especially when standing up quickly. (2)

Serious or emergency symptoms

  • Chest pain: Severe iron deficiency can strain the heart, leading to chest pain or a rapid heartbeat. Seek immediate medical attention. (2)
  • Extreme fatigue: Overwhelming tiredness that interferes with daily activities. Consult a doctor urgently. (2)

Causes

Primary causes

  • Blood loss: Heavy menstrual periods, gastrointestinal bleeding, or frequent blood donations can deplete iron stores. (3)
  • Poor iron absorption: Conditions like celiac disease or stomach surgery can affect how your body absorbs iron from food. (3)
  • Inadequate dietary iron: Not eating enough iron-rich foods, especially in vegetarians or older adults. (3)

Risk factors

Women of childbearing age

Heavy menstrual periods and pregnancy increase iron needs. (3)

Infants and young children

Rapid growth requires more iron, especially if not breastfed. (6)

Diagnosis

Diagnosis involves blood tests to measure haemoglobin levels, ferritin (iron stores), and red blood cell count. Your doctor may also check for underlying causes of iron loss, such as gastrointestinal bleeding.

Complete blood count (CBC)

Measures haemoglobin levels and red blood cell count. (4)

Ferritin test

Assesses iron stores in the body. (4)

Treatment

Medication options

Iron supplements

Replenishes iron stores in the body to restore haemoglobin levels. (5)

Lifestyle and self-care

  • Iron-rich diet: Include foods like red meat, beans, lentils, and dark leafy greens. Pair plant-based iron sources with vitamin C-rich foods. (6) (5)

Always discuss dosing and treatment changes with your own prescriber.

Possible complications

  • Heart problems: Severe anaemia can strain the heart, leading to arrhythmias or heart failure. (7)
  • Developmental delays: In children, untreated anaemia can impair growth and cognitive development. (8)

When to see a doctor

Routine follow-up

  • Consult your doctor if you experience persistent fatigue, paleness, or shortness of breath. (1)

Seek emergency care

  • Seek immediate care for chest pain, rapid heartbeat, or severe shortness of breath. (2)

Frequently asked questions

What are the first signs of iron deficiency anaemia?

Early signs include fatigue, pale skin, shortness of breath, and dizziness. These symptoms develop gradually as iron levels decline. (2)

How long does it take to recover from iron deficiency anaemia?

Improvement starts in weeks, but replenishing iron stores typically takes 3-6 months with supplements. (5)

Can iron deficiency anaemia be cured?

Yes, most cases resolve with treatment addressing the underlying cause and replenishing iron stores. (7)

References

  1. NHS — Iron deficiency anaemia source 1
  2. NHS — Iron deficiency anaemia - Symptoms source 2
  3. NHS — Iron deficiency anaemia - Causes source 3
  4. NHS — Iron deficiency anaemia - Diagnosis source 4
  5. NHS — Iron deficiency anaemia - Treatment source 5
  6. CDC — Iron and Iron Deficiency source 6
  7. MedlinePlus — Iron deficiency anemia source 7
  8. WHO — Micronutrient deficiencies: Iron deficiency anaemia source 8