Thalassemia, also known as hemoglobin synthesis disorder anemia, refers to a group of hemolytic diseases caused by abnormal hemoglobin genes resulting in abnormal hemoglobin protein or quantity. Thalassemia can be divided into α-thalassemia and β-thalassemia, depending on the type of hemoglobin affected. Thalassemia can vary in severity; individuals with mild thalassemia can live for a long time and may not require regular red blood cell transfusion support in daily life, whereas those with severe thalassemia may die shortly after birth.