Which form of thalassemia is most commonly encountered?

Which form of thalassemia is most commonly encountered?

• A. Delta-thalassemia
• B. B-thalassemia
• C. Alpha-thalassemia
• D. Gamma-thalassemia

Answer: (B)

Beta-thalassemia is the form most commonly encountered because mutations in the beta-globin gene (HBB) are the most frequent cause of inherited hemoglobin disorders seen across many populations. This leads to a wide spectrum from beta-thalassemia trait to beta-thalassemia major, which makes it a common diagnosis in clinical practice worldwide. Delta- and gamma-thalassemias are rarer variants limited to specific regions, and alpha-thalassemia, while quite prevalent in some areas due to gene deletions, does not overall surpass beta-thalassemia in frequency of clinically significant cases.

Beta-thalassemia is the form most commonly encountered because mutations in the beta-globin gene (HBB) are the most frequent cause of inherited hemoglobin disorders seen across many populations. This leads to a wide spectrum from beta-thalassemia trait to beta-thalassemia major, which makes it a common diagnosis in clinical practice worldwide. Delta- and gamma-thalassemias are rarer variants limited to specific regions, and alpha-thalassemia, while quite prevalent in some areas due to gene deletions, does not overall surpass beta-thalassemia in frequency of clinically significant cases.