HPV is the name of a group of viruses that includes more than 100 different types. More than 30 of these viruses can be passed from one person to another through sexual contact. For most women, the body's own defense system will clear the virus and they don't develop health problems. However, some types can cause cervical cancer or abnormal cells in the lining of the cervix that can sometimes progress to cancer. Other types are a major cause of genital warts. For women who do develop cervical cancer, HPV is generally the root cause. In 2006, it is estimated that there will be 9,710 new cases of cervical cancer and 3,700 deaths attributed to it in the United States. Worldwide, cervical cancer is the second most common cancer in women; and it is estimated to cause over 470,000 new cases and 233,000 deaths per year. |