The efficacy of the three shots of the nine-valent vaccine is generally the same, just divided into three different time periods to be vaccinated. The nine-valent vaccine can mainly be used to prevent human papillomavirus infection, generally in the vaccination of nine-valent vaccine needs to be divided into three vaccinations, respectively, 0, 2, 6 months, the vaccination of the same dosage form, the composition is also the same, and there is no difference. If you want to receive the nine-valent vaccine, it is recommended that you first consult a doctor for cervical cancer screening to find out whether or not there is any pre-cancerous cervical lesion, and you also need to undergo an HPV examination to determine whether or not there is any HPV virus infection. If there is any infection, it is best not to rush to take the vaccine, but to wait until your body recovers before taking the vaccine. You should wait until your body recovers before taking the vaccine. You should also go to the doctor for regular checkups to avoid diseases.