Nine-valent vaccine generally refers to HPV nine-valent vaccine.HPV vaccination precautions: 1. HPV vaccination is prohibited for those who have hypersensitivity to the active ingredient of the vaccine or any of the excipient components. 2. Those who have symptoms of hypersensitivity reaction after injection of this product should not be revaccinated with this product. HPV vaccine should be used with caution for the following people: 1. People with thrombocytopenia or other coagulation disorders that can be a contraindication for intramuscular injection should not be vaccinated. 2. Pregnant women or women preparing for pregnancy should postpone vaccination until the end of pregnancy, and breastfeeding women should be cautious when vaccinating. 3. Acute diseases are often accompanied by fever and other systemic symptoms, vaccination may aggravate the symptoms. It is recommended that the vaccine be administered after the symptoms have recovered. 4. Because some women have different degrees of discomfort during menstruation, it is recommended that they be vaccinated during non-menstrual periods. It is recommended to consult the local vaccination center for specific vaccination matters, and routine cervical cancer screening should also be conducted after HPV vaccination.