The cervical cancer vaccine is generally recommended to be completed within six months, with the third injection to be completed within one year at the latest. The main function of the cervical cancer vaccine is to prevent human papillomavirus infection, thus reducing the risk of cervical cancer. Generally, the second injection of cervical cancer vaccine is two months apart from the first injection, and the third injection is completed in the sixth month. If there are special reasons that the vaccination cannot be completed within six months, the third injection should be completed within six months after the second injection at the latest, and it will not affect the preventive effect. After the cervical cancer vaccination, avoid smoking and drinking for one week, and be sure to pay attention to contraception during the cervical cancer vaccination. The cervical cancer vaccine cannot be given when you are pregnant, and you can only have the rest of the vaccine after the breastfeeding period. If there is any adverse reaction after receiving cervical cancer vaccine, you should go to the regular hospital for consultation in time to avoid delaying your condition.