Abstract:Neutropenia is the most common hematologic toxicity of chemoradiotherapy for gynecological malignancies. It can lead to the delay and dose reduction of follow-up treatment, induce febrile neutropenia and severe infection easily, and affect the prognosis of patients. It is of great significance to pay attention to the harm of neutropenia and to carry out risk assessment and standardized prevention and treatment. The pegylated recombinant human granulocyte colony-stimulating factor (PEG-rhG-CSF), as a long-acting preparation of recombinant human granulocyte colony-stimulating factor (rhG-CSF), can prevent and treat neutropenia and is convenient for clinical use. In order to promote clinical rational administration of drugs, based on evidence-based evidence, the consensus formulation team evaluated the efficacy and safety of its application during chemoradiotherapy for gynecological malignancies, defined the clinical pathway and administration mode of prevention and treatment, and then formed the Chinese expert consensus on the application of PEG-rhG-CSF during chemoradiotherapy for gynecological malignancies.