宫颈癌是最常见的恶性肿瘤之一,发病率居全球女性恶性肿瘤第二位,仅次于乳腺癌,全球每年约有20万妇女死于宫颈癌。近年来,有研究发现宫颈癌的发病数有逐年增加的趋势,发病率以每年2%~3%的速度递增,发病年龄呈年轻化。宫颈上皮内瘤样病变(cervical intraepithelial neoplasia,CI Cervical cancer is one of the most common malignant tumors, the incidence of which ranks second in the world for female malignant tumors, second only to breast cancer. About 200,000 women die of cervical cancer each year worldwide. In recent years, studies have found that the incidence of cervical cancer have increased year by year trend, the incidence rate of 2% to 3% annual rate of increase, the age of onset was younger. Cervical intraepithelial neoplasia (CI