Cervical cancer is a cancer arising from the cervix or in the any layer of the wall of the cervix.[2] It is due to the abnormal growth of cells that have the ability to invade or spread to other parts of the body.[12] Early on, typically no symptoms are seen.[2] Later symptoms may include abnormal vaginal bleeding, pelvic pain or pain during sexual intercourse.[2] While bleeding after sex may not be serious, it may also indicate the presence of cervical cancer.[13]

Reference
Wiki: Cervical carcinoma