What is another name for the phenotype of α-thalassemia major?

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α-thalassemia major is also known as hydrops fetalis, which is the most severe form of α-thalassemia. It occurs when all four α-globin genes are missing, leading to the complete absence of functional hemoglobin and severe intrauterine anemia. This condition is often fatal before or shortly after birth. Hemoglobin H disease is the phenotype of α-thalassemia that occurs when three out of four α-globin genes are missing, while silent carrier refers to individuals who have one missing α-globin gene and usually have no symptoms. β-thalassemia major is a separate condition caused by mutations in the β-globin gene, leading to severe anemia and requiring lifelong blood transfusions.

What Is Another Name for the Phenotype of α-Thalassemia Major