What is Alpha Thalassemia? Types, symptoms, and diagnosis

Find out about Alpha Thalassemia, its symptoms, diagnosis and more. Read inside.

When we think about common health issues, diabetes and high blood pressure are the most common health issues that pop into our minds. However, some other disorders are more common than we think and can impact an individual without them realising it. One such condition is Alpha Thalassemia. This is a genetic blood disorder that affects the ability to produce hemoglobin, thereby impacting the oxygen level in the body.

However, understanding this condition, its type, and early diagnosis can help prevent life-altering complications.

Cause of Alpha Thalassemia.

The root cause of alpha thalassemia is a mutation in the HBA1 and HBA2 genes, which are responsible for producing alpha-globin. Alpha globin is a key component of hemoglobin. The absence or reduction of alpha globin can make red blood cells defective and even cause anemia and further other health issues like fatigue, weakness, and pale skin. In severe cases, the disorder can result in organ damage and other health complications if left untreated.

Alpha Thalassemia Diagnosis.

To diagnose this condition, doctors use a combination of clinical evaluation, blood tests, and genetic analysis. Tests include a Complete Blood Count (CBC) to measure red cell levels and size, Hemoglobin Electrophoresis to identify types of hemoglobin, and Ferritin tests to check for iron-deficiency anemia. Besides this, a DNA test is also done to identify whether alpha-globin genes are present, missing, or damaged, offering a more precise understanding of the condition.

Four Types of Alpha Thalassemia,

1. Silent Carrier – One out of four genes is missing or damaged. Individuals may show no symptoms but can unknowingly pass the gene to their children.

2. Alpha Thalassemia Trait – Two genes are missing. This often causes mild anemia.

3. Hemoglobin H Disease – Three genes are missing, leaving only one functioning. Symptoms are moderate to severe, and patients may face frequent anemia, enlarged spleen or liver, yellowish skin, and leg ulcers.

4. Alpha Thalassemia Major—The most severe form, where all four genes are missing. This often causes fatal anemia and can lead to death before or shortly after birth unless treated with advanced interventions.

Treatment of Alpha Thalassemia

Treatment of this condition is also possible; however, it can vary depending on the severity and may include folic acid supplements, blood transfusions, iron chelation therapy, and even spleen removal in extreme cases.

Alpha thalassemia is most common in people of African, Asian, and Middle Eastern descent, affecting 5–20% of the global population.