Heterozygous for the CD17 locus mutation gene suggests beta-thalassemia minor, and patients need to go to the hospital for regular checkups to be alert to the occurrence of anemia. Heterozygous for the CD17 locus mutation suggests beta-thalassemia minor, also known as bead protein dysgenerative anemia, which is a genetically inherited disease. This disease can not be prevented, patients should usually improve the diet, eat more fruits and vegetables, appropriate supplement protein, regular review, alert to the occurrence of anemia, if the hemoglobin is around the normal value, does not affect the life and learning, there is no great need for treatment, such patients need to do a good job of premarital genetic screening, to prevent the birth of children with thalassemia major. Patients usually pay attention to not picky food, not partial food, regular review, to prevent the occurrence of anemia.