Nine-valent generally refers to the nine-valent HPV vaccine, which can be given to women between the ages of 16 and 26. And women who are not sexually active will be better protected with the vaccine. Nine-valent HPV vaccine can prevent infections and lesions caused by nine types of HPV viruses.Women between 16 and 26 years old can be vaccinated. The nine-valent HPV vaccine requires three doses according to the 0, 2, and 6 month immunization schedule. If there is no time to vaccinate at the prescribed time, the vaccination may not be given earlier and may be delayed appropriately, but all 3 doses should be completed within one year. Systemic adverse reactions such as fever, nausea, dizziness, fatigue, etc., and localized adverse reactions such as pain, swelling and erythema at the vaccination site may occur after vaccination with the nine-valent HPV vaccine. Women who are allergic to the components of the nine-valent HPV vaccine should be prohibited from receiving the vaccination.