Cervical cancer vaccine 2-valent, 4-valent and 9-valent are three different cervical cancer vaccines. The cervical cancer vaccine 2-valent generally prevents cervical cancer caused by two human papillomaviruses, HPV16 and HPV18. The cervical cancer vaccine 4-valent prevents four HPV viruses, such as HPV16, HPV18, HPV6, HPV11, etc. The cervical cancer vaccine 9-valent prevents nine different HPV viruses. Cervical cancer vaccine 9-valent can prevent 9 different types of HPV viruses, adding HPV31, HPV45, HPV33, HPV52, HPV58 and several other types to the quadrivalent vaccine. If you want to get the cervical cancer vaccine, it is recommended to consult a specialized doctor.