Abstract
Background: Cervical cancer is the most common malignant tumor of female reproductive tract, with the second highest incidence in female malignant tumors and even the highest in some developing countries. Cervical cancer accounts for about 500,000 new cases worldwide each year, accounting for 5% of all new cases of cancer, more than 80% of which are in developing countries. The number of deaths of cervical cancer in China is about 53,000 per year, accounting for about 18.4% of all female malignant tumor deaths. Cervical cancer is a leading disease that endangers the health and life of women in China.