SymptomsFemale reproductive systemEarly-stage cervical cancer generally produces no signs or symptoms.Signs and symptoms of more-advanced cervical cancer include:Vaginal bleeding after intercourse, between periods or after menopause.Watery, bloody vaginal discharge that may be heavy and have a foul odor.Pelvic pain or pain during intercourse.Female reproductive systemThe ovaries, fallopian tubes, uterus, cervix and vagina (vaginal canal) make up the femalereproductive system.CausesCervical cancer begins when healthy cells in the cervix develop changes (mutations) in their DNA. A cell's DNA contains the instructions that tell a cell what to do.Healthy cells grow and multiply at a set rate, eventually dying at a set time. The mutations tell the cells to grow and multiply out of control, and they don't die. The accumulating abnormal cells form a mass (tumor). Cancer cells invade nearby tissues and can break off from a tumor to spread (metastasize) elsewhere in the body.It isn't clear what causes cervical cancer, but it's certain that HPV plays a role. HPV is very common, and most people with the virus never develop cancer. This means other factors — such as your environment or your lifestyle choices — also determine whether you'll develop cervical cancer.