Quadrivalent cervical cancer vaccine is suitable for women aged 9 to 45. Human papillomavirus (HPV) infection is the main factor that triggers cervical cancer. Preventing HPV infection can help prevent cervical cancer, and its vaccine is called cervical cancer vaccine. Quadrivalent cervical cancer vaccine is suitable for women aged 9 to 45. Quadrivalent cervical cancer vaccine can prevent HPV6, HPV11, HPV16 and HPV18 subtypes of virus infection, and can activate the corresponding antibodies in the body after vaccination. It is applicable to a wide range of ages, and eligible women can take the vaccine as prescribed by their doctors. In addition, the nine-valent cervical cancer vaccine is only applicable to 16~26 years old, and it is recommended to consider injecting the quadrivalent cervical cancer vaccine if you are over 26 years old. For details, the vaccine should be injected according to the doctor’s advice.