What Is Beta Thalassemia?
Thalassemia is a type of inherited blood disorder that can cause anemia. It affects a person's ability to produce hemoglobin, which is the protein in red blood cells that delivers oxygen to all parts of the body. There are two main types of thalassemia: alpha thalassemia and beta thalassemia.
Hemoglobin is made up of two different protein chains: the alpha-globin chain and the beta-globin chain. Alpha thalassemia occurs when there is a problem with the alpha-globin chain, and beta thalassemia occurs when there is a problem with the beta-globin chain.
Worldwide, beta thalassemia is considered a fairly common blood disorder, affecting thousands of infants each year. The condition occurs most frequently in:
- Mediterranean countries
- North Africa
- The Middle East
- India
- Southeast Asia.
In North America, beta thalassemia is less common, where an estimated 750 to 1,000 people have the condition.