Sunshine - Riding the bike does not contribute to cervical cancer. HPV, the Human Papilloma Virus, does. This is the virus that is responsible for Herpes - all the different kinds, from what I understand. As genital herpes is sexually transmitted, you are more likely to get HPV if you have multiple sex partners. Having said that, it only takes one exposure and the estimates in North America are that 1 in every 4 people is carrying HPV. So.... Do the math and it doesn't take long to see that it's not uncommon and risk of exposure is high even in people who have one partner.
You are more likely to have cervical cancer if you have HPV.
HPV is a virus that stays in the body and looks for opportune moments to rear it's ugly head. If your immune system is suppressed, you are more likely to have an outbreak. I'm not sure if mechanical irritation contributes to outbreaks or not.
I hope this helps. I understand how irritating it is when these diseases are labeled in a way that makes the sufferer look like they deserve it. It's completely insensitive and ignorant.
Living life like there's no tomorrow.
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2007 Look Dura Ace
2010 Custom Tonic cross with discs, SRAM
2012 Moots YBB 2 x 10 Shimano XTR
2014 Soma B-Side SS