The cost of routine blood tests is generally between$20-50, which varies slightly depending on the region and the level of the hospital, so you need to consult your local hospital. The first aspect is to observe whether the white blood cells and neutrophils are normal. If the number of white blood cells and neutrophils is significantly higher, it is generally considered to be caused by inflammation and infection. If the white blood cell or neutrophil count is significantly lower than normal, it is considered to be caused by abnormal hematopoietic function of the body, in addition, if chemotherapy drugs can also cause bone marrow suppression and lead to lower white blood cells. The second aspect is to observe the hemoglobin count in the blood routine. If the hemoglobin and red blood cells are low, it is considered to be caused by anemia. The third aspect is to observe the platelets. If the platelet count is abnormally high, it is considered to be caused by the dysfunction of the body’s immune system. If the platelet count is too low, it is generally considered to be caused by hypersplenism.