The five-year survival rate for pre-stage II cervical cancer is more than 80 percent. If it is advanced cervical cancer, the survival rate can also reach 40-50% in five years through active treatment. Therefore, if cervical cancer is detected and treated early, it can be completely cured. At present, cervical cancer is the only kind of cancer whose cause can be known. Cervical cancer is caused by human papillomavirus (HPV) infection, so cervical cancer vaccination can prevent the occurrence of cervical cancer. It takes about 10 years from infection with HPV to the development of cervical cancer, so treatment during this period of precancerous lesions can stop the development of cervical cancer.