How old is HPV vaccination and what precautions are there after vaccination?

HPV vaccine is suitable for women over the age of 11, and there is no sexual life. If there is sexual life, it should be checked before vaccination for HPV infection. Precautions after vaccination include: 1. Try to prevent pregnancy within half a year, because at this stage it cannot be ruled out whether HPV vaccination will affect the fetus after pregnancy within half a year. 2. HPV vaccination can only prevent HPV infection, but can not prevent the spread of other sexually transmitted diseases, so even after HPV vaccination, condoms should also be used to reduce the risk of sexually transmitted diseases. 3. HPV vaccination within six months, should not be vaccinated with other vaccines.