I am actually getting the shot. The vaccination is a dose of 3 shots, and what it does is help prevent against cervical cancer, hpv, and some other diseases. It is not a for sure thing, but at least you will be more protected than women that have not received the shot. I would recommend that you get it.As for the side effects well...I fainted after my second shot. The first one was fine, but the second one hurt really bad. However, I didn't eat before I was injected with it, so that may be why. Some other side effects are dizziness and nausea...typical side effects that could come along with any other shot. I'm going to get my third shot at the end of January, hopefully I don't faint after that one!I hope I helped!