Thalassemia carriers refer to thalassemia gene carriers, whose carriers usually have no signs. Thalassemia gene carriers belong to the stationary type of thalassemia patients, this kind of patients usually do not have obvious signs, and will not show a series of thalassemia symptoms such as dizziness and fatigue, pallor, yellowish sclera, hepatosplenomegaly and so on, and they are no different from normal people. Only in the routine blood examination, it can be found that the average hemoglobin amount and the average volume of red blood cells are low, and when the hemoglobin electrophoresis examination is performed, abnormal hemoglobin can be found, and if the peptide chain examination is performed, it can be found that the peptide chain is missing. However, patients do not have any abnormality in appearance and will not affect normal growth and development, and can work and live normally. In addition, thalassemia gene carriers need to pay attention in marriage and childbearing. If their spouses are also thalassemia gene carriers, their offspring may produce moderate or severe thalassemia, which may cause serious impact. It is recommended that thalassemia gene carriers should go to regular hospitals for relevant examinations when considering marriage and childbearing.