Cervical cancer is caused by the sexually transmitted human papillomavirus (HPV), which is the most common viral infection of the reproductive tract. It affects younger age groups as a result of early sexual activity, multiple sexual partners, and exposure to other sexually transmitted infections such as HIV.
There are more than 100 types of HPV, of which at least 13 are cancer-causing. Two types of HPV cause 70 percent of all cervical cancer. Most sexually active men and women will be infected at some point in their lives with HPV -- some may be repeatedly infected.
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