The three routine tests refer to blood, urine and stool tests. The routine blood tests include white blood cells, red blood cells, platelets, hemoglobin, and so on, to check whether there are infections or blood system diseases, or anemia. Stool routine is to check the color of the stool, whether there is bleeding in the stool, and whether there are parasites in the stool. Urine routine is usually to check the white blood cells, urine color, urine occult blood, urine ketone body, and urine sugar, etc.