After the leukapheresis injection on the 2nd day of routine blood tests will be accurate, when the test results show that the white blood cells are higher than the lower limit of the normal range, you can stop using leukapheresis injection, did not exceed the upper limit of the normal range can continue to play. 1. After chemotherapy, it is generally based on the indicators of white blood cells and neutrophils in the routine blood test to determine whether to play the injection, after the first chemotherapy, it is best to do two routine blood tests a week. 2. If the white blood cells are lower than before chemotherapy, or close to the threshold value, you can consider taking oral whitening drugs; if the white blood cells are lower than 3×10^9/L, you can temporarily observe and take oral whitening drugs; if accompanied by fever and other symptoms of infection, review the blood routine again, and at the same time, according to the condition of the disease to be treated with anti-infective therapy, etc.; if the white blood cells are lower than 2×10^9/L, it is recommended that you take the whitening injection treatment. Because of the individual differences of each person, the specific dosage or contact the attending physician, neutrophils less than 0.5, it is recommended that the emergency room or hospitalization as soon as possible.