The levels can be normal to increased in beta thalassemia. Hemoglobin F frequently increases in individuals with sickle cell anemia and sickle cell-beta thalassemia. Individuals with sickle cell and increase of Hb F have a milder case of the disease.
The levels can be normal or elevated in beta thalassemia. Hemoglobin F often increases in individuals with sickle cell anemia and sickle cell-beta thalassemia. Individuals with sickle cell and increased Hb F have a less severe case of the disease.