Human granulocyte factor injection can usually effectively regulate the granulopoiesis in the bone marrow and promote the proliferation and differentiation of hematopoietic stem cells. Human Granulocyte Factor Injection is mainly used for the treatment of neutropenia in the clinic, cancer patients applying myelosuppressive chemotherapy drugs injected with this drug can help to prevent the occurrence of neutropenia, reduce the degree of neutropenia, accelerate the recovery of granulocytes, reduce the risk of co-infection. Adverse reactions such as muscle aches, back pain, abnormal transaminases, fever, headache, and rash may occur. Safety in pregnancy has not been established, and is not recommended for use during pregnancy; nursing women should stop breastfeeding before use of the drug; as the safety of the drug for newborns, and infants has not been established, and is not recommended for use; the physiological function of the elderly patients is relatively low, pay attention to the dosage and the interval; there are serious hepatic and renal function or cardiorespiratory dysfunction is contraindicated. Please use the drug under the supervision of a doctor.