Nine-valent vaccine can be given at the age of 30. Nine-valent vaccine refers to the nine-valent human papillomavirus (HPV) vaccine, which is mainly used to prevent HPV infections, and the vaccine is available for ages 9-45 years old, so you can get the nine-valent HPV vaccine at the age of 30. The nine subtypes of the virus that can be prevented by the nine-valent HPV vaccine are HPV types 6, 11, 16, 18, 31, 33, 45, 52, and 58. The risk of exposure to HPV rises with age, and is especially significant with the onset of sexual intercourse, so it is recommended that women who meet the age requirement receive the vaccine as early as possible. It is important to note that women who are pregnant or preparing for pregnancy should delay vaccination until the end of pregnancy, and caution should be exercised when vaccinating breastfeeding women. HPV vaccination is prohibited for those who have hypersensitivity to the active ingredient of the vaccine or to any of the excipient components, and those who have symptoms of hypersensitivity after injection of the product should not be revaccinated with the product. Regular cervical cancer screening is still required after HPV vaccination.