The most typical manifestations of blood count in patients with aplastic anemia are decreased whole blood cells, increased lymphocyte ratio, decreased reticulocytes, lower than normal hemoglobin, white blood cells and platelets in blood count: 1. The normal lymphocyte ratio is around 40%, and the lymphocyte ratio is generally above 60%; 4. Platelets will be significantly lower than normal, and in patients with aplastic anemia, platelets are below 100×10^9/L; 5. Reticulocytes, reticulocytes are a kind of immature red blood cells released from the bone marrow to the periphery, and the proportion in peripheral blood is about 0.5%-1.5%, and the proportion in aplastic anemia The percentage is relatively low in aplastic anemia. Reticulocytes indicate the active degree of bone marrow hematopoiesis, such as aplastic anemia; if you have abnormal or abnormally low blood cells during routine blood tests, especially when there is a decrease in whole blood cells, you must pay great attention to the possibility of aplastic anemia.