The cervical cancer vaccine is necessary for young people and can prevent most cervical cancers. Whether or not to get vaccinated depends on one’s health condition and financial situation. Cervical cancer can be prevented to a large extent through the injection of cervical cancer vaccine. It is recommended that women between the ages of 9 and 45 years old should be actively vaccinated against cervical cancer. It is important to note that after vaccination, cervical cancer screening should also be performed as usual, as the vaccine does not cover all types of HPV infections. The 2-valent, 4-valent and 9-valent cervical cancer vaccines can prevent 2, 4 and 9 HPV subtypes respectively. However, the cervical cancer vaccine also has its contraindications to vaccination, such as contraindications for those who have hypersensitivity to the active ingredient of the vaccine or to any of the excipient components, and those who have symptoms of hypersensitivity after the injection should not be re-vaccinated. All drugs have adverse reactions, and cervical cancer vaccine is no exception. Possible adverse reactions include headache, fever, etc., which can be relieved on their own in most cases, so there is no need to worry too much.