HPV vaccine, or human papillomavirus vaccine, is also called cervical cancer vaccine. After injecting this vaccine, there may be some side effects, mainly manifested as follows: 1. Reaction at the injection site. If patients are vaccinated, they may have symptoms of redness, swelling, itching and pain at the injection site, and some may even show signs of infection. These symptoms are mainly related to individual differences, and also related to local care after injection; 2. Allergic reactions. People with special constitution may have allergic symptoms after HPV vaccination, and the specific clinical symptoms are not exactly the same among different individuals; 3. Systemic symptoms such as fever, nausea and fatigue may also occur after HPV vaccination, and the occurrence of such symptoms is also related to individual constitution. The vast majority of women have no significant adverse reactions after HPV vaccination.