Basic introduction to the nine-valent vaccine With the rapid development of science and technology and medicine, the nine-valent vaccine has subverted people\’s previous understanding of this disease in preventing cervical cancer. The nine-valent vaccine is a vaccine used to prevent cervical cancer, anal cancer and other types of cancer caused by human papillomavirus (HPV) infection. The nine-valent vaccine is an upgraded version of the trivalent vaccine. In addition to containing HPV types 16 and 18 in the trivalent vaccine, it can also prevent types 31, 33, 45, 52 and 58, which are collectively known as types 16 and 18. high-risk type. Preventing physical pain is a blessing among women’s misfortunes. Cervical cancer is a