The Septavalent Cervical Cancer Vaccine is a three-dose vaccine that is required in order to prevent cervical cancer. The first shot is given at your own random choice and produces a certain amount of antibodies in your body. The second injection is given within two months after the first injection. The third injection is given within four months after the second injection. After vaccination, the body will be immune to the new surge of antibodies. Nine-valent cervical cancer vaccine also has certain side effects, such as soreness, redness, swelling, bleeding, muscle weakness and joint pain in the arm, and dizziness, nausea, vomiting and other symptoms in some patients. People who are allergic to yeast components, preparation for pregnancy, pregnancy and breastfeeding should not be vaccinated. Stay for observation for half an hour after inoculation, and seek professional medical consultation if there are any uncomfortable symptoms.