Appointments for the quadrivalent human papillomavirus (HPV) vaccine are made by going to a hospital or the CDC. The 4-valent HPV vaccine, which prevents HPV 6, 11, 16, and 18 viral infections, thereby preventing cervical cancer, genital warts, and other diseases. The vaccine is generally recommended for women between the ages of 9 and 45, and a total of three injections are required, in the 0th, 2nd and 6th month respectively. A physical examination is required before the vaccine is administered, and the vaccine cannot be administered if you are pregnant, and you can prepare for pregnancy only six months after the vaccination is completed. Although the quadrivalent HPV vaccine can play a preventive role for cervical cancer, it is still necessary to have a physical examination on time. Note that some patients may have side effects such as redness, swelling and pain at the injection site, nausea, fever and dizziness after injection. Therefore, it is important to observe the health condition after injection, and if the side effects are particularly obvious, you need to go to the hospital for further treatment.