Cancer is a disease that happens when body cells don't work right. The cells divide really fast and grow out of control. These extra cells form a tumor.
Cervical cancer is cancer in the cervix, (the lower, narrow part of the uterus (womb)). The uterus is the hollow, pear-shaped organ where a baby grows during a woman's pregnancy. The cervix forms a canal that opens into the vagina (birth canal), which leads to the outside of the body.
Most cases of cervical cancer are caused by the human papillomavirus (HPV). HPV is a virus that is passed from person to person through genital contact, most often during vaginal and anal sex.