Answer:
Cervical cancer has multiple risk factors - not just one cause. The majority of cases do come from a sexually transmitted virus called HPV. Genital human papilloma virus (HPV) is the most common sexually transmitted infection (STI). The virus infects the skin and mucous membranes. There are more than 40 HPV types that can infect the genital areas of men and women, including the skin of the penis, vulva (area outside the vagina), and anus, and the linings of the vagina, cervix, and rectum. You cannot see HPV. Most people who become infected with HPV do not even know they have it.
The other factors can include: multiple sex partners, smoking, weakened immune system, genetic factors, etc.
Cervical cancer often has no symptoms until it is more advanced. For this reason, it is important for women to get screened regularly for cervical cancer. (Pap Test)