Thalassemia, also known as marine anemia, is a group of hereditary hemolytic anemia diseases caused by genetic defects that result in the absence or insufficiency of the synthesis of one or more bead protein chains in hemoglobin. Its symptoms are anemia, liver and spleen enlargement progressive aggravation, jaundice, dysplasia, etc., seriously endangering the patient’s health, is a more terrible disease. The terrible thing is that thalassemia is a rare congenital anemia disease, which is inherited as autosomal incomplete dominant and cannot be cured at present. If severe anemia occurs in the clinic, blood transfusion can be taken to treat the disease, patients with mild condition can be asymptomatic for the rest of their lives, while patients with severe condition usually die in the fetus or die early in the womb, and at present, transplantation of allogeneic hematopoietic stem cells is the only way to stabilize the treatment. Although thalassemia is terrible, but if you do a good job of prevention, you can still reduce the chance of thalassemia. Thalassemia is caused by a simple genetic abnormality, so there are no special requirements for diet. If you want to prevent thalassemia, the first step is to conduct screening to see if there is any thalassemia gene in the body; if the abnormality is positive, then genetic diagnosis will be carried out, and the above is the etiological prevention; the second step of prevention, such as couples carrying thalassemia gene at the same time, then need to carry out prenatal diagnosis, and if it is confirmed that the fetus gene type is thalassemia major, then terminate the pregnancy, and some of the patients are lack of knowledge of thalassemia and did not terminate the pregnancy, the Fetuses with thalassemia major need to be treated with blood transfusion for iron removal after birth. Thalassemia can be classified as thalassemia minor or thalassemia major according to the degree of genetic abnormality. The life expectancy of a person with thalassemia minor is not very different from that of a normal person. Thalassemia major is very severe and can lead to early morbidity or even premature death.