Is bivalent or quadrivalent cervical cancer vaccine better?

Cervical cancer bivalent vaccine and quadrivalent vaccine, of course, the quadrivalent vaccine is better because the quadrivalent vaccine is based on the bivalent vaccine to prevent two more HPV infections, which are HPV type 6 and HPV type 11. Although they are low-risk HPV infections, once infected, they may lead to genital warts. The quadrivalent vaccine prevents more HPV and is recommended for quadrivalent vaccination. The quadrivalent vaccine mainly prevents HPV type 16, HPV type 18, HPV type 6, and HPV type 11 infections. Before receiving the quadrivalent vaccine, it is best to have a cervical cancer screening to find out whether the cervical epithelium has been lesioned, and if there are lesions, vaccination is temporarily not allowed, and corresponding treatment needs to be given, and the vaccination can be given after regular re-examination when the re-examination turns negative.