Microcytic Anemia Causes

Microcytic anemia is a type of anemia that occurs when your body doesn’t have enough red blood cells that are smaller than normal in size. This condition can cause a range of symptoms, from fatigue and weakness to shortness of breath and dizziness. In this article, we’ll explore the causes of microcytic anemia, how it’s diagnosed, and how it’s treated.

Microcytic Anemia Causes

What Is Microcytic Anemia?

Microcytic anemia is a type of anemia that occurs when your body doesn’t have enough red blood cells that are smaller than normal in size. These small red blood cells can’t carry enough oxygen to your body’s tissues, causing a range of symptoms.

What Are the Symptoms of Microcytic Anemia?

The symptoms of microcytic anemia can include:

  1. Fatigue and weakness: Microcytic anemia can cause extreme fatigue and weakness, making it difficult to perform even simple tasks.
  2. Shortness of breath: Microcytic anemia can make it difficult to breathe, even when you’re resting.
  3. Dizziness: Lack of oxygen to the brain can cause dizziness and lightheadedness.
  4. Pale skin: Microcytic anemia can cause your skin to appear pale or yellowish.
  5. Cold hands and feet: Microcytic anemia can reduce blood flow to your extremities, causing cold hands and feet.

What Causes Microcytic Anemia?

There are several possible causes of microcytic anemia, including:

  1. Iron deficiency anemia: This is the most common cause of microcytic anemia. Iron is needed to produce hemoglobin, the protein in red blood cells that carries oxygen.
  2. Thalassemia: Thalassemia is an inherited blood disorder that affects the production of hemoglobin. People with thalassemia may produce small or abnormally shaped red blood cells, leading to microcytic anemia.
  3. Anemia of chronic disease: This type of anemia is caused by chronic inflammation or infection, which can interfere with the production of red blood cells.
  4. Lead poisoning: Lead poisoning can cause microcytic anemia by interfering with the production of hemoglobin.

How Is Microcytic Anemia Diagnosed?

To diagnose microcytic anemia, your doctor will perform a physical exam and ask about your medical history and symptoms. They may also order blood tests, including a complete blood count (CBC) and a blood smear. These tests can help determine the size and shape of your red blood cells and identify any underlying conditions that may be causing your anemia.

How Is Microcytic Anemia Treated?

The treatment for microcytic anemia depends on the underlying cause. If your anemia is caused by iron deficiency, your doctor may recommend iron supplements or dietary changes to increase your iron intake. If your anemia is caused by thalassemia or another inherited blood disorder, you may need regular blood transfusions or other treatments to manage your symptoms.

In some cases, more aggressive treatment may be necessary. For example, if your anemia is caused by lead poisoning, you may need chelation therapy to remove the lead from your body. If your anemia is caused by an underlying chronic disease, treating the underlying condition may help improve your anemia.

Preventing Microcytic Anemia

Preventing microcytic anemia may involve making dietary changes, such as increasing your intake of iron-rich foods like red meat, leafy green vegetables, and fortified cereals. If you have a chronic condition that puts you at risk for anemia, it’s important to work with your doctor to manage your condition and prevent anemia from developing or worsening.


Microcytic anemia is a type of anemia that occurs when your body doesn’t have enough red blood cells that are smaller than normal in size. It can be caused by a range of factors, including iron deficiency, thalassemia, anemia of chronic disease, and lead poisoning. If you’re experiencing symptoms of microcytic anemia, it’s important to see a doctor for diagnosis and treatment. Treatment may involve dietary changes, iron supplements, blood transfusions, or more aggressive therapies, depending on the underlying cause of your anemia. With proper diagnosis and treatment, most people with microcytic anemia can manage their symptoms and improve their quality of life.

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  • Jung Sammie

    As a fitness enthusiast and nutrition expert, I believe that the right lifestyle choices can make a big difference in how we feel and function. With my practical tips and advice, you'll be able to make positive changes to your health and well-being.