Women who have sex can get the cervical vaccine, not that the cervical vaccine is meaningless. Some researches show that women infected with HPV virus can easily lead to virus invasion of the cervix and cervical cancer. Cervical cancer vaccine mainly prevents HPV virus infection, women who have sex may have been infected with HPV virus and the effect of injecting cervical cancer vaccine is not good. If they have been infected with the virus, they need to apply interferon, and after the virus is cured, they can take the cervical cancer vaccine. But it is not the injection of cervical cancer vaccine, must not be cervical cancer, because the scope of cervical cancer vaccine prevention is relatively narrow, HPV virus is divided into a variety of, cervical cancer vaccine is only for a few kinds of prevention. Therefore, women also need to do annual pre-cancer screening of the cervix, that is, TCT and HPV virus testing.