How many times do you get HPV vaccine?

Quadrivalent HPV vaccine generally needs to be injected 3 times, the interval between the first and second times is generally two months, and the interval between the third and first time is 6 months, generally within half a year vaccination, but if pregnant can not be vaccinated, or after infection with HPV virus is also not vaccinated, so before vaccination HPV vaccine, it is best to do a good physical examination, confirmed health circumstances and then vaccinate. And try to pay attention to the doctor's advice vaccination, prevent the interval time is too long, if the interval time is too long, may not achieve the expected effect.