It varies from person to person and of course on the strain that you have. I've heard the low-risk and high-risk types: low-risk being one that causes warts and high-risk being lead to a possibility of cervical cancer in women. Also, how healthy and strong your immune system is. This is why it's so important to stay healthy, because a lot of times hpv disapears on its own though it will always be with you. I hope this helps a little, but you should research it a little more online and maybe even ask your doctor. It's crazy how many people have this virus nowadays..
My warts came out only in the later part of my pregnancy, which was 2 yrs ago, and I havent seen them since. Ive heard stress brings them out too, BUT Ive been streessssed ALOT on and off the past 2 yrs, and they havent come back. Oh, and when your immune system is down, thats when they supposedly come out.