The three doses of the HPV vaccine need to be separated by two and four months, so the three doses of the HPV vaccine are also 0, 2 and 6 months. Nine-valent HPV vaccine is mainly used to prevent human papillomavirus infection, for HPV type 16, 33 and so on. In general, the nine-valent HPV vaccine is suitable for women aged 16-26 years old to reduce the chance of cervical cancer. After vaccination, patients may experience muscle pain, fever, dizziness and other symptoms. After the injection, it is usually necessary to observe in the observation room for about half an hour, and if there are adverse reactions and the situation is more serious, it is necessary to explain with the doctor in time. The nine-valent HPV vaccine should be vaccinated according to the stipulated intervals in an orderly manner, to avoid too long an interval affecting the efficacy of the vaccine, the general delay of no more than one month on the efficacy of the vaccine will not have a particularly large impact.