Nine-valent is short for the nine-valent human papillomavirus vaccine, which requires a half-hour stay for observation after vaccination. After receiving the Septavalent vaccine, you are kept in the hospital for half an hour for observation, in order to prevent adverse reactions such as allergies, dizziness, headache, and fatigue. Only after no adverse reactions occur can you leave the hospital where you were injected. At present, the nine-valent HPV vaccine is suitable for preventive vaccination of women aged 16 to 26 in China. Each dose is 0.5ml, and three doses are given according to the immunization program of 0, 2 and 6 months. Vaccination is not suitable for those who have fever, allergy, acute illness, pregnancy, etc. within one week. After receiving the nine-valent human papillomavirus vaccine, if local pain symptoms occur, the pain will usually be relieved by itself in 2~3 days. Meanwhile, the skin at the vaccination site should be kept clean and dry to avoid infection at the injection site.