Routine blood tests are as follows: 1. Leukocytes: 4000-10000/mm^3 in adults, 15000-2000/mm^3 in children. increased leukocytes suggest certain inflammatory infections or leukemia; decreased leukocytes can be considered as hypersplenism or infectious viral infections; 2. Hemoglobin: 120-160g/L in men, 110-150g/L in women, 170-200g/L in children. Hemoglobin is a common indicator of anemia, and a decrease in hemoglobin indicates anemia, while an increase in hemoglobin indicates benign disease; 3, platelets: normal reference value is (100-300) × 10^9/L. Increased platelets include primary thrombocytosis or secondary thrombocytosis; decreased platelets are primary thrombocytopenia or thrombocytopenia purpura. purpura.