Thalassemia
What is Thalassemia?
Thalassemia is a genetic blood disorder that affects how your body makes hemoglobin. Hemoglobin is the protein inside red blood cells that carries oxygen throughout your body. When you have thalassemia, your body produces an abnormal form or not enough hemoglobin.
This leads to the destruction of many red blood cells and causes anemia. Anemia means you do not have enough healthy red blood cells to carry oxygen to your tissues. The severity of thalassemia varies widely. Some people have mild symptoms and live normal lives. Others need regular blood transfusions to survive.
Thalassemia is inherited from your parents through genes. It is most common in people with Mediterranean, Middle Eastern, African, and Southeast Asian ancestry. Early diagnosis through blood testing helps you understand your condition and plan appropriate treatment.
Symptoms
- Fatigue and weakness
- Pale or yellowish skin
- Shortness of breath
- Dark urine
- Facial bone deformities
- Slow growth in children
- Enlarged spleen or liver
- Dizziness or lightheadedness
- Frequent infections
Some people with mild thalassemia, especially thalassemia minor, have no symptoms at all. They may only discover their condition through routine blood work. Symptoms typically appear in moderate to severe forms of the condition.
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Causes and risk factors
Thalassemia is caused by genetic mutations that affect hemoglobin production. You inherit these mutations from one or both parents. If you inherit one mutated gene, you have thalassemia minor, which causes mild or no symptoms. If you inherit two mutated genes, you may have thalassemia major, which causes severe anemia and requires medical care.
Your ancestry significantly impacts your risk. People with Mediterranean, Middle Eastern, African, and Southeast Asian backgrounds have higher rates of thalassemia. The genetic mutations developed in these regions as a natural protection against malaria. Carriers cannot prevent passing the gene to their children, but genetic counseling helps families understand their risks before having children.
How it's diagnosed
Thalassemia is diagnosed through blood tests that evaluate your red blood cells and hemoglobin. A complete blood count measures your hematocrit level, which shows the percentage of red blood cells in your blood. People with thalassemia typically have low hematocrit and abnormally small red blood cells.
Additional blood tests measure your iron levels, including total iron and total iron binding capacity. Thalassemia can cause both high and low iron levels depending on the severity and treatment history. Urine urobilinogen testing helps monitor the breakdown of red blood cells and disease activity. Rite Aid offers comprehensive blood testing that includes these key biomarkers. Genetic testing may also be used to confirm the specific type of thalassemia and identify mutations.
Treatment options
- Regular monitoring through blood tests to track anemia and iron levels
- Blood transfusions for moderate to severe cases
- Iron chelation therapy to remove excess iron from transfusions
- Folic acid supplements to support red blood cell production
- Bone marrow or stem cell transplant in severe cases
- Spleen removal if the spleen becomes enlarged
- Eating a balanced diet rich in nutrients
- Avoiding iron supplements unless prescribed by your doctor
- Preventing infections through vaccines and good hygiene
Concerned about Thalassemia? Get tested at Rite Aid.
- Simple blood draw at your nearest lab
- Results in days, not weeks
- Share results with your doctor
Frequently asked questions
Thalassemia minor occurs when you inherit one mutated gene from one parent. It causes mild or no symptoms and rarely requires treatment. Thalassemia major occurs when you inherit mutated genes from both parents. It causes severe anemia and requires regular blood transfusions throughout life.
A bone marrow or stem cell transplant can cure thalassemia in some cases. However, this procedure carries significant risks and is typically reserved for severe cases. Most people manage their condition through regular monitoring, blood transfusions, and supportive care rather than pursuing a cure.
Testing frequency depends on the severity of your condition. People with thalassemia minor may only need annual blood work. Those with moderate to severe forms typically need blood tests every few months to monitor anemia, iron levels, and organ function.
If you carry one thalassemia gene, each child has a 50% chance of being a carrier. If your partner is also a carrier, each child has a 25% chance of having thalassemia major and a 50% chance of being a carrier. Genetic counseling can help you understand your specific risks.
Regular blood transfusions introduce extra iron into the body. Your body has no natural way to remove excess iron, so it builds up in organs over time. This iron overload can damage the heart, liver, and other organs. Iron chelation therapy helps remove this excess iron.
A nutritious diet supports overall health but cannot treat thalassemia itself. Eat plenty of fruits, vegetables, whole grains, and lean protein. Avoid iron-fortified foods and supplements unless your doctor prescribes them, as iron overload is a common concern.
Low hematocrit means you have a reduced percentage of red blood cells in your blood. This is a hallmark sign of anemia caused by thalassemia. Your red blood cells are also typically smaller than normal, which blood tests can detect.
No, they are different conditions that both cause anemia. Iron deficiency anemia results from not having enough iron to make hemoglobin. Thalassemia is a genetic disorder that affects hemoglobin structure, not iron availability. Blood tests can distinguish between the two conditions.
Yes, adults with mild thalassemia minor may go undiagnosed for years. They might discover their condition during routine blood work or when investigating unexplained fatigue. Severe forms are usually diagnosed in childhood because symptoms appear early.
Urobilinogen is a substance produced when red blood cells break down. People with thalassemia destroy red blood cells at a faster rate, which increases urobilinogen in the urine. Testing urobilinogen levels helps doctors monitor disease activity and the rate of red blood cell destruction.