HPV vaccine is to be injected intramuscularly in the deltoid region of the upper arm, and the vaccination is usually given in 0, 2 and 6 months. You cannot leave the hospital for half an hour after the HPV vaccine because there may be an allergic reaction after the HPV vaccine, and you can go home if you do not feel anything for half an hour. After HPV vaccination, there will be local pain or redness, which is a normal phenomenon and usually disappears in 3-5 days. After HPV vaccination, you should also have regular cervical cancer screening, and you should use contraception during the HPV vaccination process, and you should not get pregnant within six months.