At present, there are three types of cervical cancer vaccines in China, the 2-valent vaccine, the 4-valent vaccine, and the 9-valent vaccine. the age for the 2-valent vaccination is 9-45 years old, the 4-valent vaccination is 20-45 years old, and the 9-valent vaccination is 16-26 years old. Because there are studies that prove that after HPV infection, the virus tends to invade the cervix and cause lesions in the cervix, women who are not sexually active, or women who are already sexually active, can get the cervical cancer vaccine to prevent HPV infection, which can reduce the incidence of cervical cancer. Because the vaccine mainly prevents HPV virus infection, but there are dozens of HPV viruses, and the cervical cancer vaccine only prevents a few, so getting the cervical cancer vaccine does not mean that you will not get cervical cancer, but the chance is greatly reduced.