Mild thalassemia has no effect on the heart. Thalassemia is also known as thalassemia with impaired production of beads, and according to clinical typing, there is a difference between severe and mild thalassemia, in which mild thalassemia is relatively mild, and the patients do not have anemia in their blood tests. This mild thalassemia itself has a good prognosis, generally does not need special treatment, and will not cause severe anemia, therefore, it will not affect the heart itself, and will not cause high dynamic heart failure; its diagnosis often needs to rely on hemoglobin analysis or genetic analysis to determine. Of course, mild thalassemia also needs to be treated under the guidance of a doctor and in conjunction with tests to determine whether it needs treatment and whether it affects the heart.