Nine-valent vaccine booking success is reserved for three shots, do not need to repeat the booking, in addition, before booking should check the vaccine age limit and their own situation. Currently on the market there are bivalent, quadrivalent, nine-valent HPV (human papillomavirus) vaccine, different types of HPV vaccine vaccination age limit is different, you need to book an appointment according to their own situation, bivalent, nine-valent suitable for vaccination age of 9 to 45 years old, 16-26 years old, respectively. The initial vaccination age of quadrivalent vaccine is 20~45 years old. In November 2020, the State Drug Administration approved quadrivalent HPV vaccine for women aged 9~19 years old. In addition, it is also necessary to rule out contraindications to HPV vaccine, which is prohibited for people with severe allergies to the active ingredients or excipient components of the vaccine; people with thrombocytopenia or other coagulation disorders are advised to consult their doctors whether they can be vaccinated before making an appointment.