Low neutrophil percentage should be treated according to the cause of the low neutrophil percentage, so that the neutrophil percentage will return to the normal level. 1. If neutropenia is caused by medication, the medication should be stopped under the guidance of a doctor. Commonly seen in hyperthyroidism patients taking antithyroid drugs to reduce granulocytes, in accordance with the doctor’s advice to stop using antithyroid drugs in a timely manner at the same time, can be taken orally Ricodin tablets, or intramuscular injection of recombinant human granulocyte stimulating factor and other drugs for treatment. 2. If the lymphocyte ratio is high and the neutrophil percentage is low due to viral infection, anti-viral treatment should be carried out. Oral medications such as acyclovir tablets and ribavirin tablets can be taken as prescribed by the doctor. Such drugs can effectively kill the virus and thus control the infection. After the infection is controlled, the ratio of neutrophils and lymphocytes will gradually return to normal. Meanwhile, it cannot be ruled out that the disease is caused by bacterial infection, aplastic anemia, hyperfunction of monocyte macrophage system, etc. Patients should under the guidance of the doctor to do the next examination to clarify the cause of the disease, and then treat the cause of the disease.