The reason why white blood cells do not rise after the leukemia chemotherapy cycle is because of bone marrow suppression, which requires a recovery process, and attention should be paid to the combination of the clinician’s guidance to regulate. The drugs applied in the process of leukemia chemotherapy will be accompanied by cytotoxicity, in killing tumor cells will also cause inhibition of the growth of normal cells, the most common side effect is bone marrow suppression. The most common side effect is myelosuppression. If the myelosuppression is not completely lifted after the end of the medication, resulting in a decrease in the production of white blood cells and their release into the bloodstream, there will be a slow increase in white blood cells, which can be recovered through daily life adjustments in mild cases, and in severe cases, the use of medication (Granulocyte Colony Stimulating Factor) can be used to restore the white blood cell counts under the guidance of the doctor. If the white blood cell count can not be restored, it is necessary to consult a doctor for observation and standardized treatment under the guidance of a clinician, so as not to be negligent, so as not to make a mistake.