Resting thalassemia is a type of thalassemia in which the patient carries the thalassemia gene but has no clinical manifestations. Thalassemia is a congenital anemia caused by an abnormality of hemoglobin in the red blood cells, and it is a hereditary disease, and thalassemia at rest is a type of thalassemia. Although thalassemia carries the thalassemia gene, the red blood cells are normal in morphology and show no clinical symptoms. The hemoglobin value can be seen in the normal range during routine blood tests, but the average red blood cell volume, average red blood cell hemoglobin content and other values may be on the low side, and further examination of the thalassemia gene may reveal abnormalities. Patients with resting type of anemia can live and work normally, and generally do not need special treatment, but should go to the hospital to check the couple’s anemia genes before preparing for pregnancy. Specific diagnosis should be carried out under the guidance of a physician.