evidence: Yes. Because the HPV vaccine is made using only the surface protein from the virus, it can't cause HPV and, therefore, can't cause cervical cancer. The vaccine may cause redness and tenderness at the site of injection. The vaccine may also cause a low-grade fever in a small number of recipients. Fainting has been reported; however, the rates have not been higher than those following receipt of other vaccines for teens. Because of the possibility of fainting, teens are recommended to remain at the office for about 15-30 minutes after getting immunized. [...] Yes. The HPV vaccine prevents the types of HPV that cause about 9 of every 10 cervical cancers. Because the vaccine doesn't prevent all types of HPV that cause cancer, women still need to get routine Pap tests. Likewise, the vaccine doesn’t protect against types of HPV to which a person was exposed prior to vaccination. [...] No. Unfortunately, therapeutic trials of HPV vaccine have shown that the vaccine doesn't cause a regression in Pap smear changes that precede cervical cancer.