They have tests that are used in research studies that are not available for commercial use. They can also sort of extrapolate the number of men from the number of women who have it.
She already has it, which means she has antibodies to that particular strain, and she won't get that strain again. She can get other strains, but if she was infected by you, then you both have the same strain.
If she wasn't infected by you, then you've already been exposed to the strain she has, and have antibodies which will protect you from getting that strain again.
Aj
How do they know what percentage of guys have it if they cant be tested? and my partner is going to the doctor in december to get the infected cells removed or something. If she did get it from me, how come she wont just get it again the next time we have sex
Oh and it will go away on its own. 90% of people will clear it within 2 years.
For more HPV info, see our HPV forum or go to www.ashastd.org
Well, oral hpv is rare, so that's why you wouldn't get it from kissing.
And most of the strains that affect the genital area are not going to affect any other part of your body. The HPV strains that causes warts on your elbow or feet aren't going to affect your genitals, just as the strains that affect your genitals aren't going to affect any other part.
The only one that might is strain 16, and that can infect the mouth. Its considered rare though.
Condoms reduce the risk of HPV transmission by about 70%, herpes by about 50%. I can't find the stat for syphilis off hand, but it does offer about the same for syphilis.
Aj