Condition

Anemia

Anemia occurs when you don't have enough red blood cells or hemoglobin to carry oxygen throughout your body. It's a common condition that can cause fatigue and other symptoms.

Eir.Space Medical AI
Reviewed by Medical AI
Last reviewed: June 20, 2025
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Overview#

Anemia is a condition in which you don't have enough healthy red blood cells or hemoglobin to carry adequate oxygen to your body's tissues. Hemoglobin is the protein in red blood cells that carries oxygen. When you have anemia, your body doesn't get enough oxygen-rich blood, which can make you feel tired and weak.

Anemia is very common and can be temporary or long-term, mild or severe. There are many types of anemia, with iron deficiency anemia being the most common. Treatment depends on the cause and can range from dietary changes to medications or other treatments.

Symptoms#

Anemia symptoms can be mild or severe and may include:

Common Symptoms:

  • Fatigue: Feeling tired and weak
  • Weakness: General lack of energy
  • Pale or yellowish skin: Less color than normal
  • Shortness of breath: Especially with exertion
  • Dizziness or lightheadedness: Feeling faint
  • Cold hands and feet: Poor circulation
  • Headache: Frequent headaches
  • Irregular heartbeat: Heart may beat faster
  • Chest pain: In severe cases
  • Brittle nails: Nails may break easily
  • Unusual cravings: May crave ice, dirt, or other non-food items

Symptoms may be mild at first and worsen as anemia becomes more severe.

When to Seek Immediate Care#

Seek emergency care if:

  • Severe shortness of breath
  • Chest pain
  • Rapid or irregular heartbeat
  • Fainting or loss of consciousness
  • Severe fatigue preventing normal activities

Self-care & Home Management#

Managing anemia involves:

  1. Take Medications as Prescribed:

    • Iron supplements (if iron deficiency)
    • Other supplements as needed
    • Don't skip doses
    • Take with food if stomach upset
  2. Dietary Changes (if iron deficiency):

    • Iron-rich foods:
      • Red meat, poultry, fish
      • Beans and lentils
      • Dark leafy greens
      • Iron-fortified cereals
    • Vitamin C: Helps iron absorption (citrus, tomatoes)
    • Avoid: Tea/coffee with meals (can reduce absorption)
  3. Rest:

    • Get adequate sleep
    • Don't overexert
    • Pace activities
    • Listen to your body
  4. Manage Underlying Cause:

    • If due to blood loss, address cause
    • If due to chronic disease, manage that
    • Follow treatment plan
  5. Regular Monitoring:

    • Follow-up blood tests
    • Monitor improvement
    • Adjust treatment as needed

When to Seek Care#

Call Emergency Services (112 in Sweden)#

  • Severe shortness of breath
  • Chest pain
  • Rapid or irregular heartbeat
  • Fainting
  • Severe symptoms

Contact Healthcare Provider#

  • Persistent fatigue
  • Symptoms of anemia
  • Need for evaluation
  • Questions about treatment
  • Symptoms not improving
  • Need to adjust treatment

Self-care is Appropriate#

  • Mild anemia being treated
  • Following treatment plan
  • Regular monitoring scheduled
  • No new concerning symptoms

Tests & Diagnostics#

Diagnosing anemia involves:

  1. Complete Blood Count (CBC):

    • Hemoglobin: Low in anemia
    • Hematocrit: Percentage of red blood cells
    • Red blood cell count: Number of cells
    • Mean corpuscular volume (MCV): Size of cells
  2. Additional Blood Tests (to determine cause):

    • Iron studies: Iron, ferritin, transferrin
    • Vitamin B12 and folate: If deficiency suspected
    • Reticulocyte count: New red blood cells
    • Other tests as needed
  3. Other Tests (if indicated):

    • Bone marrow biopsy (rare)
    • Stool test (for blood loss)
    • Other specialized tests

Types of Anemia:

  • Iron deficiency: Most common, low iron
  • Vitamin deficiency: B12 or folate deficiency
  • Chronic disease: Related to other conditions
  • Aplastic: Bone marrow doesn't make enough cells
  • Hemolytic: Red blood cells destroyed too quickly
  • Sickle cell: Genetic condition
  • Other types

Treatment#

Treatment depends on the cause:

Iron Deficiency Anemia:

  • Iron supplements
  • Iron-rich diet
  • Treat underlying cause (bleeding, etc.)
  • Usually resolves with treatment

Vitamin Deficiency Anemia:

  • B12 supplements (oral or injection)
  • Folate supplements
  • Dietary changes
  • Usually resolves with treatment

Chronic Disease Anemia:

  • Treat underlying condition
  • May need medications (erythropoietin)
  • Manage the chronic disease

Other Types:

  • Depends on specific type
  • May need medications
  • May need blood transfusions
  • May need other treatments

General Approaches:

  • Treat underlying cause
  • Supplements as needed
  • Dietary changes
  • Medications if needed
  • Blood transfusions (in severe cases)
  • Other treatments as indicated

Prevention#

Prevent anemia by:

  • Eat Iron-Rich Diet:
    • Red meat, poultry, fish
    • Beans, lentils
    • Dark leafy greens
    • Iron-fortified foods
  • Get Enough Vitamins: B12 and folate
  • Treat Underlying Conditions: Chronic diseases, bleeding
  • Regular Check-ups: Early detection
  • Prenatal Care: Important during pregnancy
  • Avoid Excessive Blood Loss: If possible

What Happens in the Body#

In anemia:

  1. Reduced Red Blood Cells: Not enough cells or hemoglobin
  2. Less Oxygen Carried: Blood can't carry enough oxygen
  3. Tissues Don't Get Enough Oxygen: Organs and tissues affected
  4. Symptoms Develop: Fatigue, weakness, etc.

Causes:

  • Blood loss: Menstruation, bleeding, injury
  • Decreased production: Iron deficiency, vitamin deficiency, bone marrow problems
  • Increased destruction: Hemolytic anemias
  • Chronic diseases: Kidney disease, cancer, etc.
  • Genetic conditions: Sickle cell, thalassemia

Life-stage Considerations#

Women#

  • Higher risk due to menstruation
  • Pregnancy increases risk
  • May need more iron
  • Regular screening important

Older Adults#

  • More common with age
  • May have multiple causes
  • May be related to chronic diseases
  • Regular screening important

Children#

  • Can occur at any age
  • May affect growth and development
  • Important to treat
  • May need specialized care

Pregnancy#

  • Common during pregnancy
  • Important to prevent and treat
  • Affects both mother and baby
  • Regular monitoring needed

FAQ#

Can anemia be cured?#

Many types of anemia can be cured or effectively managed. Iron deficiency anemia usually resolves with treatment. Some types are chronic but can be managed.

How long does it take to recover from anemia?#

It depends on the type and severity. Iron deficiency anemia may improve within weeks of starting treatment, but it can take months to fully correct. Your doctor will monitor your progress.

Will I need a blood transfusion?#

Most people with anemia don't need transfusions. They're usually only needed for severe anemia or in specific situations. Most anemia is treated with supplements and dietary changes.

Can diet alone treat anemia?#

For mild iron deficiency anemia, diet may help, but supplements are usually needed. For other types, treatment depends on the cause. Always follow your doctor's recommendations.

Is anemia serious?#

It depends on the type and severity. Mild anemia may cause few symptoms, while severe anemia can be life-threatening. All anemia should be evaluated and treated appropriately.

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