Human papillomavirus, or HPV. Before receiving HPV vaccination, relevant examinations need to be conducted, such as HPV screening, pregnancy screening, and also need to be examined to rule out serious organ diseases. 1. HPV screening: Before receiving the HPV vaccine, women need to be screened to see if they have been infected with the HPV virus. If they have been infected, the effect of the vaccine will be weakened, so they need to clear the virus in time and pay attention to regular review. 2. Pregnancy screening: Pregnant women are prohibited from receiving the HPV vaccine. If a woman has had unprotected sex before receiving the HPV vaccine, it is best to have her blood human chorionic gonadotropin, or HCG, measured to make sure she is not pregnant before receiving the vaccine. 3. Examination to exclude serious organ diseases: Some patients with serious organic diseases, such as severe heart disease, kidney failure, lung failure, etc., should be cautious or prohibited from receiving HPV vaccine, so it is necessary to exclude these diseases. HPV vaccination also needs to be avoided or delayed if the patient is menstruating or has an acute infection. For HPV vaccination, it is recommended to consult with a doctor at the vaccination site and receive consent before vaccination.