The cervical cancer vaccine is clinically effective in preventing cervical cancer for about 5 years, and a total of 3 doses of the vaccine are required before the vaccine can be fully administered. However, it does not mean that 100% cervical cancer will not occur after vaccination. It is only a vaccine that will significantly reduce the incidence of cervical cancer clinically, but annual cervical cancer screening is needed to rule out the possibility of cervical epithelial cancer or precancerous lesions and to provide timely treatment if abnormalities are found. The purpose of cervical cancer vaccination is to greatly reduce the rate of cancer in the local epithelium of the cervix, so it is best to receive cervical cancer vaccination if possible.